Microwaves radar and remote sensing 2017 IEEE Microwaves, Radar and Remote Sensing Symposium
2007
Program Book of Abstracts August 29 – 31, Kyiv, Ukraine European Microwave Association CONTENTS
Contents...... 2 Organizers and Sponsors...... 3 Committees...... 4 Chairman’s Welcome...... 5 MRRS-2017 Schedule...... 8 MRRS-2017 Rooms Locations...... 11 NAU map ...... Back Cover
Program
Tuesday, August 29 ...... 9
Wednesday, August 30 ...... 12
Thursday, August 31 ...... 15
Book of Abstracts
Invited Talks ...... 25 Remote Sensing ...... 26 Passive and Active Radar Systems, Acoustics, and Radioacoustics ...... 28 Signal and Data Processing ...... 30 Radar Applications: Biomedical, Security and Defense, Automotive, Industrial ...... 32 Math Modeling and Simulation ...... 34 Image Processing, Target Classification and Identification ...... 37 Millimeter and Sub-Millimeter Wave Systems ...... 40 Electromagnetic Fields, Antenna Theory, Scattering and RCS ...... 43 SAR and ISAR ...... 46
2 ORGANIZED AND SPONSORED BY
IEEE Ukraine Section SP/AES Joint Chapter National Aviation University
We wish to thank EuMA for the contribution to the Young Scientist Contest prize fund and the travel grant fund, as well as the Sensors journal establishing the best paper award
CONFERENCE CHAIRS
MRRS-2017 Chairman Prof. Dr. Felix Yanovsky, IEEE Fellow Founder of IEEE Ukraine SP/AES Soc Joint Chapter Chair of IEEE Ukraine Section Head of Electronics Department of IAN, National Aviation University [email protected]
MRRS-2017 Technical Program Committee Chair Dr. Yuliya Averyanova, IEEE Senior Member Department of Air Navigation Systems of IAN, National Aviation University [email protected]
MRRS-2017 Publication Chair Dr. Anna Rudiakova, IEEE Senior Member Electronics Department of IAN, National Aviation University
3 COMMITTEES
Technical Program Committee
Andrey S. Andrenko, SYSU-CMU Shunde International Joint Research Institute, Guangdong, China Yuliya Averyanova, National Aviation University, Kiev, Ukraine Chris Baker, Aveillant Ltd, Cambridge, UK Nathan Blaunstein, Ben-Gurion University, Beer Sheva, Israel Pradeep Chhavchharia, Techno India NJR Institute of Technology, Udaipur, Rajasthan, India Gaspare Galati, Tor Vergata University, Roma, Italy Marina Gashinova, University of Birmingham, UK Oleg Krasnov, Delft University of Technology, The Netherlands Krzysztof Kulpa, Warsaw University of Technology, Poland Volodymyr Lukin, Kharkiv National Aerospace University, Ukraine Sergey I. Miroshnichenko, Teleoptic LTD, Kiev, Ukraine Robert W. McMillan, US Army Space and Missile Defense Command (retired), Huntsville, Alabama, USA Igor Prokopenko, National Aviation University, Kiev, Ukraine Anna Rudiakova, National Aviation University, Kiev, Ukraine Piotr Samzcynski, Warsaw University of Technology, Poland Rustem Sinitsyn, National Aviation University, Kiev, Ukraine Roberto Sorrentino, University of Perugia, Italy Almudena Suárez, University of Cantabria, Spain Ahmet Serdar Turk, Yildiz Technical University, İstanbul, Turkey Vladimir Ulansky, National Aviation University, Kiev, Ukraine Vytautas Urbanavicius, Vilnius Gedeminas Technical University, Lithuania Guy Vandenbosch, Leuven Catholic University, Leuven, Belgium Dmytro Vavriv, Institute of Radio-astronomy NASU, Kharkiv, Ukraine Felix Yanovsky, National Aviation University, Kiev, Ukraine Dusan Zrnic, National Severe Storms Laboratory, Norman, OK, USA Organizing Committee
Prof. Valeriy Chepizenko, Vice-Rector on International Cooperation, National Aviation University, Chairman Prof. Igor Machalin, Air Navigation Institute (IAN) Director, National Aviation University Dr. Yuliya Averyanova, Department of Air Navigation Systems of IAN, National Aviation University, Coordinator and TPC Chair Mr. Alexander Pitertsev, Electronics Department of IAN, National Aviation University, Treasurer Dr. Anna Rudiakova, Electronics Department of IAN, National Aviation University, Publication Chair Mr. Evgeniy Pichkalev, Vice Chairperson of IEEE Ukraine Section Dr. Elena Kozhohina, Institute of Air Navigation, National Aviation University Dr. Svetlana Kredentsar, Institute of Air Navigation, National Aviation University Ms. Anastasiia Yatsura, Electronics Department of IAN, National Aviation University, Webmaster Dr. Mariya Antyufeyeva, Department of Theoretical Radio Physics, School of Radio Physics, Biomedical Electronics, and Computer Systems, V. N. Karazin Kharkiv National University
4 CHAIRMAN’S WELCOME MESSAGE
Felix J. Yanovsky, IEEE Fellow, IEEE Ukraine Section Chair, Head of Electronics Department of The National Aviation University, Kiev, Ukraine
Dear Colleagues, On behalf of the Organizing and Program Committees, I am very pleased to welcome the participants of the 5th IEEE Microwaves, Radar and Remote Sensing Symposium (MRRS 2017), which is held again in Kiev at the National Aviation University. The 5th MRRS continues the series of very successful microwaves, radar and remote sensing events that were held in the National Aviation University (NAU). The first MRRS was organized in September 2005 and gathered together about one hundred participants from 18 countries. During the second MRRS-2008, which was again conducted in September, 74 papers from 20 countries were presented and discussed by about 120 participants. The third MRRS-2011 was held in August 25-27, and 87 papers from 21 countries were presented. In 2010, 2012, and 2016 we conducted small intermediate events: Radar Methods and Systems Workshops (RMSW-2010, RMSW-2012, and RMSW-2016) which also followed the MRRS tradition. Previous MRRS-2014 Symposium was organized in a very difficult situation when Crimea peninsula had been occupied by Russia and hostilities were unleashed in the East part of our country. It was really unusual situation for a conference. Nevertheless, we have conducted the Symposium in Kiev, and it was successful though the number of foreign participants was less than usually, as was expected. Of course, that time we could not know that the war will continue so long time that even in 3 years, the 5th MRRS will be organized under practically the same political and military situation though the active military operations are more or less suspended, thanks to the pressure onto the aggressor from the international community and responsible states. This year the MRRS, as normally, is organized by the IEEE Ukraine SP/AES Joint Chapter and the National Aviation University, represented mostly by its Institute of Air Navigation. Traditionally MRRS is an IEEE Conference which thematically is related with AESS, GRSS, MTTS, and SPS. Our stable sponsor is the European Microwave Association (EuMA) which strongly supports the Best Paper Contest. Our media partners are: The International Journal of Microwave and Wireless Technologies (IJMWT) of EuMA and Cambridge University; Modern Education and Computer Science Press (MECS) with its International Journal of Image http://www.mecs-press.org/, Graphics and Signal Processing (IJIGSP); and Sensors — Open Access Journal http://www.mdpi.com/journal/sensors. Among the participants this year we can see many researchers, experts and former students, who participated in previous MRRSs as well as a number of new colleagues and friends. The quantity of papers and participants is more than at MRRS-2014 but still less than at prewar conferences because some foreign potential authors were not able to visit Ukraine in this unstable
5 situation. The authors from 19 countries are presented in the program. As always at MRRS, the language of all papers, presentations and discussions is only English. This is a really important condition of further development of fruitful cooperation between participants from different countries, especially in Ukraine, where the stable advancement to European direction and increasing popularity of English language from year to year are obvious. The Program comprises 12 topical sessions that cover all traditional and some new fields and includes 3 invited talks: by Prof. AMINE BERMAK, IEEE Fellow from Qatar; Prof. SERGEY MIROSHNYCHENKO, from “Teleoptic PRC”, Ukraine; and Prof. ALEXANDER NOSICH, IEEE Fellow and OSA Senior Member, from the Institute of Radio-Physics and Electronics of NASU, Ukraine. I am grateful to all international TPC members and reviewers who made great voluntary work on reviewing the papers and supported this event. I would like to thank the National Aviation University (NAU), which is hosting the MRRS-2017. I sincerely thank all members of the Organizing Committee for organizing the conference and social events that wait for the participants. At last, but this is really the most important, I am very grateful to all the authors who created short but strong scientific program of MRRS-2017. I warmly welcome all of you and wish you the fruitful discussions and pleasant stay in ancient and beautiful Kiev city!
Yours sincerely,
Professor Felix J. Yanovsky MRRS-2017 Chairman
6 PROGRAM MRRS-2017 SCHEDULE All MRRS-2017 symposium sessions are located in Building1, Academic Council Hall , 3-rd floor 29 August, 2017, TUESDAY 08.00 MRRS-2017 Registration Building 1, Foyer 09.00 - 9.10 Openning Ceremony 09.10 - 9.40 Invited Talk 1 09.40 - 10.40 Session 1 Remote Sensing (RS) 10.40 - 11.20 Coffee-break and General Photography 11.20 - 12.40 Session 2 Passive and Active Radar Systems, Acoustics, and Radioacoustics (PAS) 12.40 - 13.40 Lunch 13.40 - 15.00 Session 3 Signal and Data Processing (SP 1) 15.00 - 15.20 Coffee-break 15.20 - 16.20 Session 4 Signal and Data Processing (SP 2) 16.30 -17.30 Excursion to the Museum of the National Aviation University and educational hangar 17.30 Welcome Party 30 August, 2017, WEDNESDAY 08.30 - 9.00 Invited Talk 2 09.00 - 10.00 Session 5 Radar Applications: Biomedical, Security and Defense, Automotive, Industrial (RA) 10.00 - 10.40 Coffee-break and Poster Session 10.40 - 12.40 Session 6 Image Processing, Target Classification and Identification (IP) 12.40 - 13.40 Lunch 13.40 - 14.40 Session 7 SAR and ISAR (SAR) 15.00 Excursion 31 August, 2017, THURSDAY 08.30 - 9.00 Invited Talk 3 09.00 - 10.20 Session 8: Millimeter and Sub-Millimeter Wave Systems (MMW) 10.20 - 10.50 Coffee-break 10.50 - 12.50 Session 9 Math Modeling and Simulation (MS) 12.50 - 13.50 Lunch 13.50 - 15.10 Session 10 Electromagnetic Fields, Antenna Theory, Scattering and RCS (EMT 1) 15.10 - 15.30 Coffee-break 15.30 - 16.50 Session 11 Electromagnetic Fields, Antenna Theory, Scattering and RCS (EMT 2) 17.20 Closing Ceremony and Awards 18.00 Symposium Dinner
8 Program AUGUST 29, 2017, TUESDAY
08. 00 Building 1, MRRS–2017 REGISTRATION Foyer
09.00 – 09.10 OPENNING CEREMONY
INVITED TALK 1 From Radiography to Tomography 3D Sensor Array Receptors 09.10 – 09.40 (p. 19)* Sergey Miroshnychenko, A. Nevgasymyi, Ukraine
Session 1 REMOTE SENSING (RS) 09.40 – 11.00l Chair: Sergey Kolomiets, Russia
09.40 – 10.00 Experimental PDF of Simple Radar Pulses Scattered on Rarefied Media (p. 21) Sergey Kolomiets and Andrey Gorelik, Russia
10.00 – 10.20 Remote Sensing, Spectral Brightness And Heuristic Criterion For Class Recognition (p. 22) Alexandr Arkhipov, Nikolaj Glazunov, Аnna Khyzhnyak, Ukraine
10.20 – 10.40 Multi-Polarization Approach to Operative Dangerous Atmospheric Phenomena Detection (p. 21) Yuliya Averyanova, Anna Rudiakova, and Felix Yanovsky, Ukraine
10.40– 11.20 Coffee-break and General Photography Session 2 PASSIVE AND ACTIVE RADAR SYSTEMS, 11.20 – 13.00 ACOUSTICS, AND RADIOACOUSTICS (PAS) Chair: Vladimir Pavlikov, Ukraine
11.20 – 11.40 UWB Active Aperture Synthesis Radar: The Operating Principle and Development of the Radar Structural Scheme (p. 23) Vladimir Pavlikov, Valerii Volosyuk, Semen Zhyla, Huu Nguyen Van, and Kiem Nguyen Van, Ukraine
11.40 – 12.00 Algorithm of Passive Acoustic Locator Data Processing for Flying Vehicle Detection and Tracking (p. 23) Yevhen Chervoniak, Felix Yanovsky, and Rustem Sinitsyn, Ukraine
* Page of the paper abstract in the Book of Abstracts 9 Program
12.00 – 12.20 Comparison of Dicke and Ratio Type Modulation Radiometers (p. 22) Vladimir Pavlikov, Alexey Odokiyenko and Anton Sobkolov, Ukraine
12.20 – 12.40 On the Influence of Microphone Array Geometry on the Behavior of Hypercomplex Adaptive Filters (p. 23) Francesca Ortolani, Michele Scarpiniti, Danilo Comminiello, and Aurelio Uncini, Italy
12.40– 13.40 Lunch
Session 3 SIGNAL AND DATA PROCESSING (SP1) 13.40 – 15.00 Chair: Ievgen Gorovyi, Ukraine
13.40 – 14.00 Maximum a Posteriori Estimator of the Harmonic Signal Frequency (p. 24) Iurii Chyrka and Igor Omelchuk, Ukraine 14.00 – 14.20 GLRT Detector for Gaussian Environment with Auto-Regressive Spectrum in Single Channel of High-Frequency Surface Wave Radar (p. 24) Mohammad Moniri, Maryam Nezamabadi, Iran
14.20 – 14.40 Comparative Analysis of Deep Neural Networks and Support Vector Machines for Automatic Target Recognition (p. 24) Ievgen Gorovyi, Dmytro Sharapov, Ukraine 14.40 – 15.00 Robust Methods and Algorithms of Signal Processing (p. 25) Igor Prokopenko, Ukraine
15.00 – 15.20 Coffee-break
SESSION 4 SIGNAL AND DATA PROCESSING (SP2) 15.20 – 16.20 Chair: Ahmet Serdar Turk, Turkey
15.20 – 15.40 Differences in Measurements with Separate Use of Frequencies L1 and L2 for the Application of Satellite Navigation in Near- Earth Space (p. 25) Fedir Shyshkov, Valeriy Konin and Olexii Pogurelskiy, Ukraine
15.40 – 16.00 GLR Detector in Gaussian Interference Environment with Auto- Regressive Spectrum in Multi-Channel of High-Frequency Surface Wave Radar (p. 25) Maryam Nezamabadi, and Mohamad Reza Moniri, Iran
10 Program
16.00 – 16.20 Stable Detection Algorithms for Radar Application (p. 26) Igor Prokopenko, Yuri Khmelko, Yulia Petrova, and M. Samoylenko, Ukraine
Excursion at Museum of National Aviation University, and 16.30 – 17.30 Educational Hangar
17.30 Welcome Party
MRRS-2017 Rooms Location The Building 1 has two entrances: the central entrance (from Prospect Komarova upstairs) leads to the Lobby of the Building 1 on the first floor; another entrance (from University campus) leads to the Lobby on the ground floor. Both lobbies inside the building are connected by the central stairs. The Academic Council Hall is located on the third floor directly opposite Central Stairs. Coffee Breaks are served in ГВФ-café which is located between ground and first floors and is available also from the Central Stairs. Lunches are served at the Restaurant located in the next building named “Student Bistro” 11 Program AUGUST 30, 2017, WEDNESDAY
INVITED TALK 2 Polarization Imaging for Remote Sensing (p. 19) 08.30 – 09.00 Amine Birmak, Qatar, Ashfaq Ahmed, Hong Kong, Xiaojin Zhao, China
Session 5 RADAR APPLICATIONS: BIOMEDICAL, SECURITY AND DEFENSE, 09.00 – 10.00 AUTOMOTIVE, INDUSTRIAL (RA) Chair: Ievgen Zaitsev, Ukraine
09.00 – 9.20 GPR Application for the Road Pavements Surveys (p. 26) Dmitry Batrakov, Mariya Antyufeyeva, and Oleksandr Antyufeyev, Angelika Batrakova, Ukraine
09.20 – 9.40 Determination of Response Characteristic of Capacitive Coplanar Air Gap Sensor (p. 26) Ievgen Zaitsev and Anatolii Levytskyi, Ukraine
09.40 – 10.00 Reconstruction of the Thermal Field Image from Measurements in Separate Points (p. 27) Anatoliy Protasov, Ukraine
10.00 – 10.40 Coffee-break and Poster Session
Calibration of RapidScat Scatterometer (p. 20) Ruaa Alsabah, Ali Al-Sabbagh, and Josko Zec, USA Excitation of Short Monopulses in Nitride Films Under Negative Differential Conductivity (p. 35) Volodymyr Grimalsky, Svetlana Koshevaya, Julian Sanchez-S., Mexico, Yuriy Rapoport, Ukraine Different Geometries of Electromagnetic Superheterodyne Amplification in Nitride Films (p. 35) Svetlana Koshevaya, Volodymyr Grimalsky, Jesus Escobedo, Edvaart Jatirian-F., Mexico, Yuriy Rapoport, Ukraine Airborne Interferometric Radar with 2D Frequency Domain Synthesizing (p. 41) Boris Fedotov, Sergey Stankevich, Ukraine Increasing of Operation Speed of Digital Eddy Current Defectoscopes Based on Frequency Synthesizer (p. 35) Victor Bazhenov and Anatoliy Protasov, Ukraine
12 Program
ISAR Imaging with Wideband V-FM Signals (p. 41) Xiaoxia Xie, Xiaoyi Pan, Zhaoyu Gu, Shaoqi Dai, Jiyuan Chen, China Transmitter Power Comparison between Incoherent Noise and Coherent Deceptive Jamming against Synthetic Aperture Radar (p. 42) Yongcai Liu, Wei Wang, Shaoqi Dai, Bin Rao and Guoyu Wang, China Signals from a Moving Object of Autodyne Radars with Linear Frequency Modulation (p. 27) V. Kryzhanovskyi, G. Ermak, Ukraine, Ya. Noskov, S. M. Smolskiy, Russia Thin Coal Layer Thickness Estimation using MUSIC Algorithm(p. 28) Shweta B. Thomas and Lakshi Prosad Roy, India Leaf Area Index Estimation of Forest Using Sentinel-1 C-band SAR Data (p. 21) Sergey Stankevich, Anna Kozlova, Iryna Piestova and Mykola Lubskyi, Ukraine
Session 6 IMAGE PROCESSING, TARGET CLASSIFICATION 10.40 – 12.40 AND IDENTIFICATION (IP) Chair: Mykhail Uss, Ukraine 10.40 – 11.00 Performance Analysis of Similarity Measures Between Multichannel Optical and Multipolarization Radar Images (p. 31) Mykhail Uss, Vladimir Lukin, Ukraine, Benoit Vozel, Kacem Chehdi, France 11.00 – 11.20 Detection of Moving Targets in Automotive Radar with Distorted Ego-Velocity Informations (p. 32) Christopher Grimm, Ridha Farhoud, Tai Fei, Ernst Warsitz, and Reinhold Haeb-Umbach, Germany 11.20 – 11.40 Biomedical 4D Stereo Mode for Cone Beam Tomography (p. 31) Eugene Volkov, Sergey Miroshnychenko, Ukraine
11.40 – 12.00 Discrimination of Target and Chaff in Marine Applications based on Symmetry Feature (p. 33) Nadali Zarei, Mohammad Mahdi Nayebi, Ahmad Reza Amin, Meisam Reeis Danaei, Habibollah Aalami, Iran 12.00 – 12.20 Locally Adaptive Edge Preserving Filter for Radar Image Denoising (p. 33) Andrey Rubel, Vladimir Lukin, Ukraine, Lik-Kwan Shark, UK
12.20 – 12.40 Detection of Radar Targets Moving with Acceleration (p. 32) Volodymyr Galushko, and Dmytro Vavriv, Ukraine
13 Program
12.40 – 13.40 Lunch
Session 7 SAR AND ISAR (SAR) 13.40 – 14.40 Chairs: Vladimir Lukin, Sergey Stankevich, Ukraine
13.40 – 14.00 Blind Estimation of Speckle Characteristics for Sentinel Polarimetric Radar Images (p. 40) Victoriya Abramova, Sergey Abramov, Vladimir Lukin, Ukraine Karen Egiazarian, Finland
14.00 – 14.20 Design, Deployment and Localization of Bi-directional Corner Reflectors for TerraSAR-X(p. 40) Adnan Saeed and Olaf Hellwich, Germany
14.20 – 14.40 25 GHz Short Range Radar System Design for Synthetic Aperture Radar Imaging (p. 41) Ahmet Kizilay, Ahmet Serdar Turk, Husamettin Uysal, Alper Caliskan, Yunus Emre Yamac, Melek Orhan, Turkey
15.00 Excursion
14 Program AUGUST 31, 2017, THURSDAY
INVITED TALK 3 Adapting the Method of Analytical Regularization to 08.30 – 09.00 Computational Wave Optics: Brief Overview (p. 20) Alexander Nosich, Ukraine
Session 8 MILLIMETER AND SUB-MILLIMETER WAVE 09.00 – 10.20 SYSTEMS (MMW) Chair: Mariya Antyufeyeva, Ukraine 09.00 – 9.20 Plural Three-Wave Resonances of Space Charge Wave Harmonics in Transit Section of Klystron-type Two-Stream FEL with Helical Electron Beam (p. 36) Alexander Lysenko, Iurii Volk, Anastasiia Serozhko, Ukraine, Oleksandr Rybalko, Denmark 09.20 – 9.40 Plane Circular Gradient Grating that Combines the Functions of a Spherical Mirror and a Focusing Lens (p. 36) Mikhail Dzyubenko, Vyacheslav Maslov, Eugene Odarenko, Vladimir Radionov, Ukraine 9.40 -10.00 Effects of Axial Magnetic Field Strength on Radiation Efficiency of Plasma-Beam Superheterodyne Free Electron Laser of Dopplertron Type (p. 34) Alexander Lysenko, Galyna Oleksiienko and Andrey Pavlov, Ukraine 10.00 -10.20 Localized Field Enhancement in Slow-Wave Modes of Modified Bragg Waveguide (p. 34) Yana Sashkova and Eugene Odarenko, Ukraine
10.20 – 10.50 Coffee-break
Session 9 MATH MODELING AND SIMULATION (MS) 10.50 – 12.50 Chair: Anatoliy Protasov, Ukraine
10.50 -11.10 Efficient Algorithm for Image Compression to Further Orthogonal Range Searching (p. 28) Viktor Borodin, Ukraine 11.10 -11.30 Extension of a TSMFM Fast Integral Equation Solver for the Characterization of Planar-3D Structures with Vertical Components (p. 29) Thomas Vaupel, Germany
15 Program
11.30 – 11.50 Passive Acoustic Graphene Nanosensor Construction (p. 29) Emir Aznakayev, Diana Aznakayev and Taras Borodii, Ukraine 11.50 – 12.10 Object Detection with Passive Acoustic Graphene Nanosensor (p. 29) Emir Aznakayev, Nikolai Bidnyi, Diana Aznakayeva, and Taras Borodii, Ukraine 12.10 – 12.30 Development of a Discrete Orthogonal Method for Determining the Phase Shift between High-Frequency Radio Impulse Signals (p. 30) Anatoliy Protasov, Ukraine 12.30-12.50 Role of Electron Relaxation Time in the Resonance Behavior of a Graphene Strip Grating in a Slab (p. 30) Zinenko Tatiana, Ukraine
12.50 – 13.50 Lunch Session 10 ELECTROMAGNETIC FIELDS, ANTENNA THEORY, 13.50 – 15.10 SCATTERING AND RCS (EMT 1) Chair: Yuliya Averyanova, Ukraine 13.50 – 14.10 A Continued Fraction Method for Modeling and Inversion of Triaxial Induction Logging Tool (p. 37) Gaoyang Zhu, Chen Xiang, Fanmin Kong and Kang Li, China 14.10 – 14.30 Microwave Staring Correlated Imaging Based on 3-dimensinal Randomly Distributed Antenna Array (p. 37) Yuanyue Guo and Hongmin Li, China 14.30 – 14.50 Specific RCS for On-Ground Radiolocation Target(p. 38) Alexander Maslovskiy and Maxim Legenkiy, Ukraine
14.50 – 15.10 Airborne Directional Antennas (p. 38) Leonid Sibruk, R Zadorozhnii, D Bondarenko and I Syniak, Ukraine
15.10 – 15.30 Coffee-break Session 11 ELECTROMAGNETIC FIELDS, ANTENNA THEORY, 15.30 – 16.50 SCATTERING AND RCS (EMT 2) Chair: Rustem Sinitsyn, Ukraine 15.30 – 15.50 Emission Characteristics Measurement of Phased Array Transmitter Based on Ultra-Wideband Dual Polarized Vivaldi Array (p. 38) Donglin Su, Bo Tian, Zihua Zhao and Fan Zhang, China
16 Program
15.50 – 16.10 The Fast Computation of the Electromagnetic Scattering By Using The Complex Line Source Type Green’s Function in the Method of Moments (p. 39) Deniz Kutluay and Taner Oğuzer, Turkey
16.10 – 16.30 A new hybrid approach for nanoscale antennas in quantum regions (p. 39) Chen Xiang, Qimeng Ren, Fanmin Kong and Kang Li, China 16.30 – 16.50 A Novel Method for Interference Cancellation Using Polarization Filter (p. 39) Tohid Tonekaboni, Yaser Norouzi and Ahad Rajabi, Iran
17.20 CLOSING CEREMONY AND AWARDS
18.00 Symposium Dinner
17 BOOK OF ABSTRACTS Book of Abstracts
INVITED TALKS
FROM RADIOGRAPHY TO TOMOGRAPHY 3D SENSOR ARRAY RECEPTORS Miroshnychenko S.I., Nevgasymyi A.A. “Teleoptic PRC”, Kyiv, Ukraine The history of sensors array (SA) X-ray radiography receptors development shows a big possibility in characteristics optimization and stable position of SA receptors on world market. New generation of SA receptors has 3D architecture. That allows to optimize parameters of CMOS SA receptors for fluoroscopic, linear and cone beam tomography units. Extra big field of view and frame rate (more than 300 fps) of CMOS SA receptors gives unique possibility for system development.
POLARIZATION IMAGING FOR REMOTE SENSING Ashfaq Ahmed Department of Bioengineering, Hong Kong University of Science and Technology, Hong Kong, Xiaojin Zhao College of Electronics Science and Technology, Shenzhen University, Shenzhen, China Amine Bermak College of Science & Engineering, Hamad Bin Khalifa University, Doha, Qatar We initially present a liquid crystal (LC) based creation procedure for full Stokes polarization image sensors. The proposed method enables an arrangement of both micron scale LC polarization rotators and λ/4 retarders. These can be integrated over a CMOS polarization image sensor. Also, the DoFP polarization image sensors seize polarization properties at each edge by grabbing some part of the polarization data and results in a changing instantaneous field of view (IFoV). To recover the missing polarization, interpolation methods are employed. We propose residual interpolation for DoFP image sensors, and compare the results with the already adopted algorithms. We tested our algorithm for underwater image. The results show that residual interpolation performs better than other methods in terms of visual and mean square error.
19 Book of Abstracts ADAPTING THE METHOD OF ANALYTICAL REGULARIZATION TO COMPUTATIONAL WAVE OPTICS: BRIEF OVERVIEW Alexander I. Nosich Laboratory of Micro and Nano Optics, Institute of Radio-Physics and Electronics NASU, Kharkiv, Ukraine The method of analytical regularization (MAR) is the conversion of electromagnetic field problems to the Fredholm second kind integral equations (IEs) and finally to the Fredholm second-kind infinite-matrix equations. It is still underestimated in computational optics and photonics despite many remarkable merits, which we discuss taking into account specific features of material properties of metals and dielectrics in the visible range and graphene in THz and infrared ranges. In these ranges, perfect electrical conductors (PEC) cannot be used to approximate realistic scatterers. Therefore the most reliable computational instrument is the Muller IE for a penetrable body. It is also possible to modify the solutions based on MAR, previously developed in the scattering by PEC zero-thickness screens, to analyze thinner-than-wavelength material screens: resistive, dielectric, and impedance. This opens a way for a numerically exact analysis of not only the scattering but also the absorption of THz and optical waves by the penetrable and impenetrable scatterers made of graphene, dielectrics and metals.
Remote Sensing
CALIBRATION OF RAPIDSCAT SCATTEROMETER Ruaa Alsabah, Ali Al-Sabbagh, and Josko Zec Electrical and Computer Engineering Department, Florida Institute of Technology, Florida, USA RapidScat is a Ku-band scatterometer that flew onboard the International Space Station (ISS) between September 2014 and November 2016. RapidScat’s primary objective had been global wind vector retrieval over sea surface from the measured normalized radar cross section (σ0). The retrieved wind accuracy is therefore determined by the accuracy of the underlying σ 0 measurements. To assure measurement accuracy, careful scatterometer calibration and validation is required. Cross-calibration among overlapping instruments is a common calibration method. ISS Sun-asynchronous orbit enables, for the first time, overlap with other satellite scatterometers that have been flying in Sun-synchronous orbits. This paper explores the implementation of a cross calibration method between the RapidScat and QuikScat scatterometers. QuikScat is Rapidscat’s parent instrument whose spare parts were used to build the RapidScat. Biases between σ 0 measurements from RapidScat and QuikScat have been computed
20 Book of Abstracts as a function of wind speed and incidence angle for both polarizations. The work summarized in this paper addresses cross-calibration algorithm applied to Rapidscat and Quikscat using data collected in the period from January 2015 to March 2016.
EXPERIMENTAL PDF OF SIMPLE RADAR PULSES BACKSCATTERED ON RAREFIED MEDIA Sergey F. Kolomiets, Andrey G. Gorelik Radio Engineering and Cybernetics dpt., Moscow Institute of Physics and Technology, Dolgoprudniy, Russia Experimental data of multiwavelength sounding in rains are considered in the report. It is shown that the probability density of radar echo in rains can deviate significantly from expected Rayleigh’s shape at the millimeter wavelengths of the probing radiation as well as at the centimeter wavelengths in case of sounding with large pulse volumes.
MULTI-POLARIZATION APPROACH TO OPERATIVE DANGEROUS ATMOSPHERIC PHENOMENA DETECTION Yuliya Averyanova Air Navigation Systems Department, National Aviation University, Kyiv, Ukraine Anna Rudiakova, Felix Yanovsky Electronics Department, National Aviation University, Kyiv, Ukraine This paper considers the different atmospheric factors that influence onto liquid hydrometeors that are reflectors of electromagnetic waves. The fact of hydrometeors deformation and a further change of the polarization of sounding wave that leads to the change of frequency and energy characteristics of reflected electromagnetic signal is used in computer simulation to demonstrate the possibility to detect atmospheric turbulence zones using polarimetric radar. Computer simulation results of the processes are presented and analyzed to show the possibility to separate changes of reflected signal caused by turbulence from other factors.
LEAF AREA INDEX ESTIMATION OF FOREST USING SENTINEL-1 C-BAND SAR DATA Sergey A. Stankevich, Anna A. Kozlova, Iryna O. Piestova, Mykola S. Lubskyi Department of Geoinformation Technologies in Remote Sensing of the Earth, Scientific Centre for Aerospace Research of the Earth, Kiev, Ukraine A method for estimation of leaf area index (LAI) using Sentinel-1 synthetic aperture radar (SAR) C-band dualpolarization image was developed for temperate deciduous and mixed forests. Instead of usual backscattering ratio the regressional relationship was restored between LAI and the relative difference polarization index (RDPI) adjusted by the mutual orientation of radar viewing direction and normal line of land surface local element. The mean absolute error of the LAI estimates was 0.11
21 Book of Abstracts for all forest types within study site. The specific mean LAI estimation error was 0.057 for hornbeam (Carpinus betulus), 0.058 for beech (Fagus sylvatica) and 0.066 for pine (Pinus sylvaticus) dominated stands.
REMOTE SENSING, SPECTRAL BRIGHTNESS AND HEURISTIC CRITERION FOR CLASS RECOGNITION Alexandr Arkhipov Scientific Centre for Aerospace Research of the Earth, Institute of Geological Sciences NAS, Kiev, Ukraine Nikolaj, Glazunov Electronics Department, National Aviation University, Kiev, Ukraine Аnna, Khyzhnyak Scientific Centre for Aerospace Research of the Earth, Institute of Geological Sciences NAS, Kiev, Ukraine We present an efficient heuristic algorithm for the recognition of a given class of objects by results of multispectral measurements (spectral brightness signals) and the available spectral and statistical characteristics of reference classes. The problem is reduced to finding probability densities of given (reference) classes and mean values of the spectral brightness of the recognizable class.
Passive and Active Radar Systems, Acoustics, and Radioacoustics
COMPARISON OF DICKE AND RATIO TYPE MODULATION RADIOMETERS. STATISTICAL CHARACTERISTICS OF SIGNAL PARAMETER ESTIMATES AND FLUCTUATION SENSITIVITIES Pavlikov V.V., Odokiyenko A.V., Sobkolov A.D. Aircraft Radio Engineering Systems Design Department, National Aerospace University “Kharkiv Aviation Institute”, Kharkiv, Ukraine Algorithm of radio thermal signal processing in the radiometer, which is characterized by unstable gain in predetection section of receiver, is given. This algorithm compares with signal processing algorithm in Dicke radiometer. Differences in the signal processing are indicated and the statistical characteristics of the radio- brightness temperatures estimations are compared, and the fluctuation sensitivity of the receivers. The conditions are grounded with which the application of the new type modulation radiometer is the most expedient. 22 Book of Abstracts UWB ACTIVE APERTURE SYNTHESIS RADAR. THE OPERATING PRINCIPLE AND DEVELOPMENT OF THE RADAR BLOCK DIAGRAM Vladimir Pavlikov, Valery Volosyuk, Semen Zhyla, Huu Nguyen Van, Kiem Nguyen Van National Aerospace University ‘Kharkiv Aviation Institute’, Kharkiv, Ukraine The new algorithm of signal processing for building of high spatial resolution radar images is developed. A distinctive feature of this algorithm is the ability to form images of the area that is traditionally not viewable from aircraft and aerospace objects. This area approximates usually ±(20°…25°) from the aircraft’s normal axis. In this angle sector the horizontal range resolution of radar images is low. The block diagram of complex radio engineering system that combines advantages of active radar and passive aperture synthesis systems is developed for obtaining of images with the acceptable spatial coordinate resolution in the angle sectors of observation.
ON THE INFLUENCE OF MICROPHONE ARRAY GEOMETRY ON THE BEHAVIOR OF HYPERCOMPLEX ADAPTIVE FILTERS Francesca Ortolani, Michele Scarpiniti, Danilo Comminiello and Aurelio Uncini Dpt. of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, Rome, Italy The performance of hypercomplex adaptive filters has been widely experimented during the last decade. Quaternion filters, especially, have been utilized in systems where the signals to be processed have some form of correlation. However, besides correlation, some resolved explanation about what particular algebra to use in a certain context has not been provided, yet. This work tries to contribute in this direction by proposing an experiment that puts filters to the test with changing the input signal geometry. The tests presented in this paper take place in acoustic environment and show how a proper sound space transformation, along with the choice of the mathematical format for processing, can improve a filter performance.
ALGORITHM OF PASSIVE ACOUSTIC LOCATOR DATA PROCESSING FOR FLYING VEHICLE DETECTION AND TRACKING Yevhen Chervoniak, Rustem Sinitsyn, Felix Yanovsky Electronics Department, National Aviation University, Kiev, Ukraine Vitalii Makarenko, Vadim Tokarev, Oleksandr Zaporozhets Department of Safety of Human Activities, National Aviation University, Kiev, Ukraine This paper deals with the development of the special algorithm of digital signal processing, which allows to detect flying vehicles and define their coordinates and radial velocity. The coordinates are used for trajectory tracking. The velocity is useful to distinguish maneuvering objects. Detection of an object is based on calculation of ambiguity function. It is proposed to do it by spectral method instead of classical integration. This is one of advantages of the developed algorithm.
23 Book of Abstracts
Signal and Data Processing
MAXIMUM A POSTERIORI ESTIMATOR OF THE HARMONIC SIGNAL FREQUENCY Igor Omelchuk National Aviation University, Kyiv, Ukraine Iurii Chyrka Lutsk, Ukraine The maximum a posteriori estimator of a singletone signal frequency is synthesized. It is shown that this estimator has advantage over the simple maximum likelihood estimator that lies in its basis.
COMPARATIVE ANALYSIS OF CONVOLUTIONAL NEURAL NETWORKS AND SUPPORT VECTOR MACHINES FOR AUTOMATIC TARGET RECOGNITION Ievgen M. Gorovyi and Dmytro S. Sharapov Department of Microwave Electronics, Institute of Radio Astronomy of NAS of Ukraine Nowadays automatic methods based on artificial intelligence are rapidly growing. In the paper, a problem of automatic target recognition in synthetic aperture radar images is described. It is demonstrated, that two different machine learning instruments can provide very high classification accuracy. In particular, support vector machines with proper optimization and developed local feature set gives competitive results. Secondly, a novel architecture of convolutional neural network is proposed. Important practical aspects of both methods are analyzed. Experimental results for MSTAR are given.
GLRT DETECTOR FOR GAUSSIAN ENVIRONMENT WITH AUTO- REGRESSIVE SPECTRUM IN SINGLE CHANNEL OF HIGH-FREQUENCY SURFACE WAVE RADAR M. Nezamabadi, M. R. Moniri Department of Electrical and Electronics Engineering, Yadegar-e-Imam Khomeini(RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran There are various interference sources in the environment of HFSWR which limit detection of small targets. Signal processing techniques have been proposed to reject clutter and interference signals and improve the performance of detection systems. Considering that sea clutter can be modeled by Autoregressive processes, in the work
24 Book of Abstracts presented here, single-sensor AR-GC-GLR detector examined for actual sea clutter gathered by a HFSWR. Using simulation and practical measurements, the performance of this detector will be proposed. Findings show that the performance of detection will improve by fewer numbers of the interference samples. This dependency is more than ground clutter with sparse plant coverage, which is considered at ARGC-GLR detector
GLR DETECTOR IN GAUSSIAN INTERFERENCE ENVIRONMENT WITH AUTOREGRESSIVE SPECTRUM IN MULTI-CHANNEL OF HIGH- FREQUENCY SURFACE WAVE RADAR M. Nezamabadi, M. R. Moniri Department of Electrical and Electronics Engineering, Yadegar-e-Imam Khomeini(RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran This article explores the M-AR-GLR detector with regard to the Gaussian spectrum on the actual sea clutter that is collected by multi-channel HFSWR. In this study, we will show that a large number of elements have no effect on the correlation matrix of interference samples that cause to reduce the compute volume. Spatial dependence of received sample is less, detector performance will be better. Since the detector performance with fewer number of secondary data is suitable,it can be used in HFSWR. Also in the small signal to noise ratios, the proposed detector can be better than Kelly’s GLR
DIFFERENCES IN MEASUREMENTS WITH SEPARATE USE OF FREQUENCIES L1 AND L2 FOR THE APPLICATION OF SATELLITE NAVIGATION IN NEAR-EARTH SPACE F. Shyshkov, O.Pogurelskiy, V.Konin Aeronavigation department, SMIAN NAU, Kyiv, Ukraine Traditionally the second frequency of the dualfrequency receiver is used to increase the accuracy of positioning by mitigating the influence of the ionosphere and other atmospheric effects on the signal. The presence of the useful signal at both frequencies is usually taken for granted, and it is indeed true for the Earth service zone, as the satellite antennas were primarily designed to ensure stable and reliable navigation in this zone. There is a certain difference in the radiation pattern between L1 and L2 frequencies. This plays an important role for satellite navigation in near-Earth space. The article provides the information about the use of the frequencies in the task of space navigation.
ROBUST METHODS AND ALGORITHMS OF SIGNAL PROCESSING I.G. Prokopenko Aviation Radioelectronic Complexes dept., National Aviation University, Kiev, Ukraine. On the basis of autoregressive mathematical models of signal-noise situations, methods for synthesizing robust algorithms have been developed, new optimal robust
25 Book of Abstracts autoregressive signal model parameters estimation algorithms have been developed, their effectiveness has been studied by computer simulation.
STABLE DETECTION ALGORITHMS FOR RADAR APPLICATION I. Prokopenko, Y. Petrova, Y. Khmelko, M. Samoylenko Aviation Radioelectronic Complexes dept., National Aviation University, Kyiv, Ukraine The paper presents a classification and analysis of the effectiveness evaluation of the «classic» nonparametric detectors, combined parametric, non-parametric and optimally-ranked detectors in complex disturbance situations.
Radar Applications: Biomedical, Security and Defense, Automotive, Industrial
GPR APPLICATION FOR THE ROAD PAVEMENTS SURVEYS Dmitry O. Batrakov, Mariya S. Antyufeyeva, Oleksandr V. Antyufeyev Department of Theoretical Radiophysics, V. N. Karazin Kharkiv National University, Kharkiv, Ukraine Angelika G. Batrakova Department of Survey and of Highways and Airfields, Kharkiv National Automobile and Highway University, Kharkiv, Ukraine The GPR application scheme and subsequent numerical simulation of non rigid pavement condition are proposed. The scheme is as follows: a model of the actual condition of the pavement construction is drawn up based on the processing of the primary data of the GPR survey, the stress values are calculated and prediction of the further process of pavement deterioration is performed. The results of the assessment and analysis of the pavement condition make up the basis for the designation of repair measures in the surveyed sections.
DETERMINATION OF RESPONSE CHARACTERISTIC OF CAPACITIVE COPLANAR AIR GAP SENSOR Ievgen O. Zaitsev, Anatolii S. Levytskyi Department of Electric and Magnetic Measurements, The Institute of Electrodynamics of the NAS of Ukraine, IED NANU, Kiev, Ukraine In this paper, we report of determine response characteristic of capacitive displacement sensor with coplanar parallel electrodes. The sensor is designed to measure the displacement of the ground plane relative to the total electrode surface. The optimal
26 Book of Abstracts geometry of the sensor electrodes with a view to its use on bulb hydrogenerators СГК 538 / 160-70М as meter of the air gap between the rotor pole and the reboring of the stator core is defined. The sensor response characteristic depends on the work frequency is used. For determined response characteristic of capacitive coplanar air gap sensor on the work frequency experimental research and analytical calculation was made. The relationships are calculated with application of regression analysis methods. And calculated relationships use for estimates the error of determination of response characteristic. The lowest error of model occurs when using 3-4th order polynomials shown and use for verified analytically determine response characteristic.
SIGNALS FROM A MOVING OBJECT OF AUTODYNE RADARS WITH LINEAR FREQUENCY MODULATION V.S. Kryzhanovskyi, G.P. Ermak A.S. Vasiliev, A.V.Varavin O. Ya. Usikov Institute for Radio Physics and Electronics (IRE NASU), Kharkiv, Ukraine V. Ya. Noskov, K. A. Ignatkov, A. P. Chupahin Ural Federal University (UrFU), Ekaterinburg, Russia S. M. Smolskiy National Research University “Moscow Power Engineering Institute” (NRU “MPEI”), Moscow, 111250, Russia Results of signal peculiarities’ investigation of an autodyne short-range radar system with linear frequency modulation for the moving reflecting object are considered. The autodyne signal plots are obtained for the cases when its period duration is much longer than delay time of the reflected emission as well as for the cases when this inequality is not satisfied. Experimental data are obtained on the 8mm-range Gunn-diode oscillator with frequency tuning by the varicap.
RECONSTRUCTION OF THE THERMAL FIELD IMAGE FROM MEASUREMENTS IN SEPARATE POINTS A. Protasov Dep. of Non-Destructive Testing Devices and Systems, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv, Ukraine In the article gives a brief overview of the methods for recovering the thermal field image. It is proposed a computer data processing system that allows to reconstruct the complete image of the thermal field over point temperature values and which is an alternative to the use of thermal imaging technology. The problem of information loading into the computer operating system is solved by applying the electronic platform of Arduino LLC. It was proposed software environment to collect data from analog and digital temperature converters. This software provides synchronization of the device operation with a personal computer and allows displaying and recording information from primary converters. The reconstruction of the thermal field image from the temperature values obtained by a pyrometer was performed using linear,
27 Book of Abstracts spline and cubic interpolations. A thermogram of the testing object, obtained by a thermovision camera was used as a standard field. The minimal discrepancies between the standard and reconstructed fields were obtained using spline interpolation. The proposed system can be effectively used with active thermal nondestructive testing of objects made of composite materials for visualization of thermal fields without the use of thermal imaging technology.
THIN COAL LAYER THICKNESS ESTIMATION USING MUSIC ALGORITHM Shweta B. Thomas Department of Mining Engineering, National Institute of Technology Rourkela, ODISHA, India Lakshi Prosad Roy Department of Electronics and Communication Engineering, National Institute of Technology Rourkela, ODISHA, India In coal mining, thickness of thin coal layer is measured for maintaining a defined coal mining horizon. Researchers working in the geotechnical field for detection and thickness measurement of near surface interface address challenges using recent development in radar signal processing. This paper addresses challenge in measuring thickness of thin coal layer left on mine haulage way roof for mine safety. Here, step frequency continuous wave ground penetrating radar (SFCW GPR) signal processing is given for measuring thickness of thin coal layer in presence of interfaces as coal- shale and coalshale-clay. We use multiple signal classification (MUSIC) algorithm for detecting the interfaces of dissimilar material. In order to improve the resolving power, MUSIC with spatial smoothing process (SSP) and modified spatial smoothing process (MSSP) are applied. Experimental results on thickness measurement using synthetic data models, full wave model (FWM), plane wave model (PWM) and modified plane wave model (MPWM) are demonstrated to compare the effectiveness of estimation algorithms.
Math Modeling and Simulation
EFFICIENT ALGORITHM FOR IMAGE COMPRESSION TO FURTHER ORTHOGONAL RANGE SEARCHING Viktor Borodin Kiev National University of T.Shevchenko, Kiev, Ukraine This paper considers the problem of compact storing images in large image databases and the methods for orthogonal range searching queries to analyze them. Usually these items are considered separately in the literature. In the present article 28 Book of Abstracts we describe the formulation of realistic orthogonal range searching and develop the method for compressing raster images with possibility to perform further orthogonal range searching directly on coded image without decompression that can be efficient for large image databases.
PASSIVE ACOUSTIC GRAPHENE NANOSENSOR CONSTRUCTION T.V.Borodii , D.E. Aznakayeva, E.G. Aznakayev National Aviation University, Kiev, Ukraine The scheme of passive acoustic device and the data processing of passive acoustic graphene nanosensor are presented. The development of passive acoustic radar is proposed. Construction of passive acoustic graphene nanosensor for determination the spatial position of detectable object is proposed.
EXTENSION OF A TSMFM FAST INTEGRAL EQUATION SOLVER FOR THE CHARACTERIZATION OF PLANAR-3D STRUCTURES WITH VERTICAL COMPONENTS Thomas Vaupel Dept. Antenna Technology and Electromagnetic Modelling AEM, Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR, Wachtberg, Germany This contribution deals with the extension of a socalled Thin stratified medium fast multipole (TSMFM) approach to allow the characterization of large structures with vertical components like probe feeds and vertical interconnects (vias) and finite dielectric regions embedded in a multilayered environment. First formulations of this type of fast integral equation solver were presented already in [2]. In a similar approach in [1], [3], a cumbersome decomposition in radiation and receiving patterns is performed, in contrast to this we use a generalized Green’s function tensor containing all integrations with regard to the vertical directions leading to a more stringent and effective implementation. Together with special Laguerre type integration strategies on the branch cuts, the computational efficiency can be optimized furthermore. [1] Jie L. Xiong, Y. Chen, and W. C. Chew, “A Quasi-3D Thin-Stratified Medium Fast- Multipole Algorithm for Microstrip Structures” IEEE Trans. On Antennas Prop., Vol. 59, NO. 7, July 2011, pp. 2578-2587. [2] J.-S. Zhao, W. C. Chew, C.-C. Lu, E. Michielssen, J. Song., «Thin-Stratified Medium Fast- Multipole Algorithm for Solving Microstrip Structures», IEEE Trans. On Microwave Theory Tech., Vol. 46, NO. 4, pp. 395-403, April 1998. [3] Jie L. Xiong ,Computational Electromagnetics for Microstrip and Mems Structures, Dissertation, University of Illinois at Urbana-Champaign, 2010.
OBJECT DETECTION WITH PASSIVE ACOUSTIC GRAPHENE NANOSENSOR E.G. Aznakayev, N.S.Bidnyi, D.E. Aznakayeva, T.V.Borodii National Aviation University, Kiev, Ukraine The scheme of passive acoustic device and the data processing of passive acoustic
29 Book of Abstracts radar are presented. The development of passive acoustic nanosensor using the microcontroller ATmega2560 is proposed. Construction of passive acoustic graphene nanosensor for determination the spatial position of detectable object is proposed. Subject of research is construction of the passive acoustic radar.
DEVELOPMENT OF A DISCRETE ORTHOGONAL METHOD FOR DETERMINING THE PHASE SHIFT BETWEEN HIGH-FREQUENCY RADIO IMPULSE SIGNALS Bohdan H., Вazhenov V., Protasov A. Dep. of Non-Destructive Testing Devices and Systems, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv, Ukraine At present, an acoustic method of testing is used for inspection products of aviation equipment made of powdered structural materials. One of the main information parameters is the velocity of acoustic wave propagation. The reliability of the testing essentially depends on the accuracy of measuring the transmission time of the acoustic wave in the material, in other words, on the accuracy of measuring the phase shift between the emitted and reflected signal. To increase the accuracy of this parameter, it is proposed to use a discrete orthogonal method. The results of applying the proposed method for measuring the phase shift between two signals for different signal-to-noise ratios for different values of the phase shift are presented in the article. Comparison of the results obtained experimentally and by simulation is given. Simulation was performed in the Matlab system, where virtual signals were created with a given noise level. For experimental verification of the method, a two-channel generator was used, which made it possible to generate signals with the necessary phase shift and the signal- to-noise ratio. The paper proposes a scheme for measuring the phase shift of signals, which implements the discrete orthogonal method and has high noise immunity. The obtained data confirm the effectiveness of the proposed method, which makes it possible to provide an error in measuring the phase shift of harmonic signals of less than 1° with a signal-to-noise ratio equal to 10, and this accordingly provides an error in measuring the time interval of less than 1%. The article also describes the practical implementation of the proposed system for measuring the time interval between two radio pulses at a frequency of 5 MHz. As a testing object, a composite material of the LaB6-TiB2 type was used in the shape of a rectangular prism with a side dimension of 3 mm.
ROLE OF ELECTRON RELAXATION TIME IN THE RESONANCE BEHAVIOR OF A GRAPHENE STRIP GRATING IN A SLAB Tatiana L. Zinenko Department of Quasi-Optics, Institute of Radio-Physics and Electronics NASU, Kharkiv, Ukraine We consider numerically the scattering and absorption of the THz-range H-polarized plane wave by an infinite grating of coplanar graphene strips placed into 30 Book of Abstracts a dielectric slab. Our accurate treatment is based on the singular integral equation (IE) for the electric current on elementary strip and its projection to the set of orthogonal polynomials, which are eigenfunctions of the static part of the problem. The resulting numerical algorithm possesses guaranteed convergence and controlled accuracy of computations including the vicinities of sharp resonances. Reflectance, transmittance, and absorbance by a slab with a graphene-strip grating are studied as functions of graphene’s electron relaxation time and other parameters. We show that the electron relaxation time has the strongest effect on the resonances on the surface-plasmon modes, while those on the grating modes and the slab modes remain intact.
Image Processing, Target Classification and Identification
BIOMEDICAL 4D STEREO MODE FOR CONE BEAM TOMOGRAPHY Miroshnychenko S.I. “Teleoptic” PRA” Ltd, Kiev, Ukraine Volkov E.V. National Aviation University, Kiev, Ukraine Modern radiology mainly develops in the direction of three-dimensional technology. This development is justified by the high diagnostic value of the images obtained. The next step is the observation of moving organs in a threedimensional form in real time. However, the displacement of mobile organs leads to the appearance of artifacts on resulted images. An alternative option, which is based not on tomographic sections, but on the stereoeffect, is X-ray stereoimaging. Due to the stereo effect, there are no artifacts perceived on the resulting image. But now it is necessary to determine the error in measuring the geometric dimensions of the moving investigated organs.
PERFORMANCE ANALYSIS OF SIMILARITY MEASURES BETWEEN MULTICHANNEL OPTICAL AND MULTIPOLARIZATION RADAR IMAGES M.L. Uss, V.V. Lukin Department of Transmitters, Receivers and Signal Processing, National Aerospace University, Kharkov, Ukraine B. Vozel, K. Chehdi University of Rennes, Enssat Lannion, France This paper investigates the problem of measuring similarity between multimodal Remote Sensing (RS) images using both area-based and feature-based structural similarity measures (SMs). For many RS platforms, optical image is multichannel and 31 Book of Abstracts radar image is multipolarization. Thus, vectorto-vector SMs could be applied to optical- to-radar image pairs in contrast to scalar-to-scalar SMs considered in the literature. Using two real Landsat8 – SIR-C image pairs, we demonstrate that vector variants of state-of-the-art SMs outperform their scalar counterparts. This is especially evident for Normalized Correlation Coefficient (NCC), which in vector case performs as good as or better than advanced structural SMs.
DETECTION OF MOVING TARGETS IN AUTOMOTIVE RADAR WITH DISTORTED EGO-VELOCITY INFORMATION Christopher Grimm, Ridha Farhoud, Tai Fei, Ernst Warsitz Hella KGaA Hueck & Co, Lippstadt, Germany Reinhold Haeb-Umbach Department of Communication Engineering, University of Paderborn, Paderborn, Germany In this paper we present an algorithm for the detection of moving targets in sight of an automotive radar sensor which can handle distorted ego-velocity information. In situations where biased or none velocity information is provided from the ego- vehicle, the algorithm is able to estimate the egovelocity based on previously detected stationary targets with high accuracy, subsequently used for the target classification. Compared to existing ego-velocity algorithms our approach provides fast and efficient inference without sacrificing the practical classification accuracy. Other than that the algorithm is characterized by simple parameterization and little but appropriate model assumptions for high accurate production automotive radar sensors.
DETECTION OF RADAR TARGETS MOVING WITH ACCELERATION Volodymyr G. Galushko and Dmytro M. Vavriv Microwave Electronics Department, Institute of Radio Astronomy, National Academy of Sciences of Ukraine, Kharkiv, Ukraine A chirplet transform-based algorithm for detection of radar targets moving with a constant acceleration is analyzed. An analytical expression has been derived for the ambiguity function of the chirp signal to be analyzed with regard to detection of such targets. The characteristic widths of the ambiguity function along the coordinates frequency and rate of its change are estimated. The gain in the signal-to-noise ratio, that provides the suggested algorithm as compared with application of the standard Fourier transform to detection of the chirp signals against a “white” noise background, is evaluated. It is shown that already with a comparatively small (20) number of the processing channels (elementary filters with respect to the frequency change rate) the gain in the signal-to-nose ratio exceeds 10 dB. A skeleton diagram of implementation of the suggested algorithm based on the use of multichannel weighted Fourier transform is presented. Recommendations have been developed as for selection of the detection algorithm parameters.
32 Book of Abstracts LOCALLY ADAPTIVE EDGE PRESERVING FILTER FOR RADAR IMAGE DENOISING Andrey Rubel, Vladimir Lukin Dept of Transmitters, Receivers and Signal Processing, National Aerospace University, Kharkov, Ukraine Lik-Kwan Shark School of Engineering, University of Central Lancashire, Preston, UK This paper presents a locally adaptive filtering technique for denoising radar images corrupted by intensive speckle. The proposed filter is based on a combination of discrete cosine transform (DCT) and tetrolet filter applied after variance stabilizing transformation. Through optimization of filter parameters, the edge preservation capability of the tetrolet based filter for the heterogeneous image region alongside with the effectiveness of the DCT based filter for the homogenous image region is shown to improve the visual quality of denoised images according to several visual quality metrics.
DISCRIMINATION OF TARGET AND CHAFF IN MARINE APPLICATIONS BASED ON SYMMETRY FEATURE NadAli Zarei Imam Housein Comprehensive Universit, Tehran, Iran Mohammad Mahdi Nayebi Sharif University of Technology, Tehran, Iran Ahmad Reza Amin, Meisam Reeis Danaei Imam Housein Comprehensive University, Tehran, Iran Habibollah Aalami Eyvanekey, University Tehran, Iran Among the various techniques of electronic warfare in the sea, chaff has particular importance due to its easy application and its impact on the victim radar. Despite the great history of chaff, the significant research has not been published on its recognition. It is difficult to study the behavior of chaff because of the impossibility of chaff tests in an unechoic chamber. Therefore simulation would be a suitable alternative. In this paper, the simulations of symmetric feature of chaff and target are presented and it is used to propose a processing structure, based on various classifiers, for discrimination between chaff and target. Moreover the comparison between discrimination capability of various classifiers using simulated and real data is carried out and the suitable classifier is concluded for sea applications.
33 Book of Abstracts
Millimeter and Sub-Millimeter Wave Systems
EFFECTS OF AXIAL MAGNETIC FIELD STRENGTH ON RADIATION EFFICIENCY OF PLASMA-BEAM SUPERHETERODYNE FREE ELECTRON LASER OF DOPPLERTRON TYPE Alexander V. Lysenko Department of Applied Mathematics and Complex Systems Modeling, Sumy State University, Sumy, Ukraine Galyna A. Oleksiienko, Andrey V. Pavlov Department of Computer Science, Sumy State University, Sumy, Ukraine We have obtained the system of cubic-nonlinear differential equations for the complex amplitudes of the electromagnetic fields of eigenwaves in a plasma-beam superheterodyne free-electron laser (FEL) of the Doppleron type. We have found that a decrease of the axial guiding magnetic field strength leads to an increase of the signal wave saturation levels. We have found the value of the axial guiding magnetic field strength at which a maximal amplitude electromagnetic radiation in the millimeter wavelength range is formed.
LOCALIZED FIELD ENHANCEMENT IN SLOW-WAVE MODES OF MODIFIED BRAGG WAVEGUIDE Odarenko E.N., Sashkova Y.V. Department of Photonics and Laser Engineering, Kharkiv National University of Radio Electronics, Kharkiv, Ukraine Shmat’ko A.A. School of Radiophysics, Biomedical Electronics and Computer Systems, V.N. Karazin Kharkiv National University, Kharkiv, Ukraine Modified scheme of Bragg reflection waveguide with additional layers between the hollow core and cladding is considered. Dispersion diagrams are calculated on the base of dispersion equations solutions for ordinary and modified Bragg waveguides. Slow-wave regimes are considered for both kinds of structure. Electric field spatial distributions for localized slowwave modes of Bragg reflection waveguide are obtained. It is shown that modified scheme of Bragg waveguide provides the enhanced localization of the surface modes field in the hollow core. Therefore modified Bragg waveguide is the promising electrodynamic system not only for laser-driven accelerators but also for the vacuum electron devices where usual slow-wave structures are unconvenient. 34 Book of Abstracts EXCITATION OF SHORT MONOPULSES IN NITRIDE FILMS UNDER NEGATIVE DIFFERENTIAL CONDUCTIVITY V. Grimalsky, S. Koshevaya, J. Sanchez-S. IICBA, CIICAp, Autonomous University of State Morelos (UAEM), Cuernavaca, Mexico Yu. Rapoport Physical Faculty, T. Shevchenko National University, Kyiv, Ukraine It is investigated theoretically the excitation of short monopulses of space charge waves with a wide spectrum in THz range due to the negative differential conductivity in nitride films of submicron thicknesses. In n-GaN and n-InN films it is possible to generate the pulses of 5 ps durations of high values of the electric field. The influence of the nonlocal dependence of the average electron velocity on the electron energy is taken into account. The optimum values of the bias electric fields and the doping concentrations for generating short monopulses are obtained. The short monopulses can be generated without any pedestal and differ from the domains of the strong electric field in the volumetric crystals.
INCREASING OF OPERATION SPEED OF DIGITAL EDDY CURRENT DEFECTOSCOPES BASED ON FREQUENCY SYNTHESIZER Вazhenov V., Protasov A., Gloinik K. Dep. of Non-Destructive Testing Devices and Systems, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute» Kyiv, Ukraine This paper presents analysis circuit and algorithmic methods of implementation of an eddy current defectoscope based on the digital synthesizer of frequency. Eddy current defectoscope is one of the most commonly used nondestructive device. In the paper it is proposed some optimization methods of its operation which allows rising of device’s operation speed in several time. It is shown advantages of defectoscopes based on frequency synthesizer and controlled by up-to-date microcontrollers. They have less size, power consumption and cost than modern digital defectoscopes based on powerful processors have. The operation speed, accuracy and functional capabilities of the proposed device are not worse than mentioned digital defectoscopes have.
DIFFERENT GEOMETRIES OF ELECTROMAGNETIC SUPERHETERODYNE AMPLIFICATION IN NITRIDE FILMS S. Koshevaya, V. Grimalsky, J. Escobedo-A., and E. Jatirian-F. IICBA, CIICAp, Autonomous University of State Morelos (UAEM), Cuernavaca, Mexico Yu. Rapoport Physical Faculty, T. Shevchenko National University, Kyiv, Ukraine Two geometries of the superheterodyne amplification of electromagnetic pulses of the optical range are investigated theoretically in the waveguides on the base of n-GaN and n-InN films. In the first geometry the pump optical wave moves oppositely to the signal wave, in the second geometry all interacting waves move in the same direction.
35 Book of Abstracts This amplification is the transfer of the amplification of the space charge wave due to the negative differential conductivity under the three-wave resonant interaction of two electromagnetic waves of the optical range and the space charge wave of the millimeter or terahertz range. The preferences of these geometries are pointed out.
PLURAL THREE-WAVE RESONANCES OF SPACE CHARGE WAVE HARMONICS IN TRANSIT SECTION OF KLYSTRON-TYPE TWO-STREAM FEL WITH HELICAL ELECTRON BEAM Alexander Lysenko, Iurii Volk, Anastasia Serozhko Department of Applied Mathematics and Complex Systems Modelling, Sumy State University, Sumy, Ukraine Oleksandr Rybalko Department of Electrical Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark We have carried out the research of plural threewave resonances of space charge wave (SCW) harmonics in the transit section of the klystron type two-stream superheterodyne free-electron laser (TSFEL) with helical electron beam in cubic non- linear approximation. We have found out that two-stream instability critical frequency increases with increasing of twostream electron beam input angle in the focusing longitudinal magnetic field. Due to this fact, the frequency domain in which plural three-wave parametric resonances of SCW harmonics take place increases. The two- stream instability growth rate also increases in helical electron beams with increasing of the beam input angle. Therefore, the saturation lengths in TSFELs with helical electron beams are shorter compared to TSFELs utilizing straight electron beams. We have shown that SCWs with broad frequency spectrum form in two-velocity helical relativistic electron beam due to plural three-wave parametric resonances. We have demonstrated that klystron-type TSFEL with helical electron beam can be used as a source of powerful multiharmonic electromagnetic waves in millimeter-infrared wavelength ranges.
PLANE CIRCULAR GRADIENT GRATING THAT COMBINES THE FUNCTIONS OF A SPHERICAL MIRROR AND A FOCUSING LENS Dzyubenko M.I., Radionov V.P. A. Ya. Usikov Institute of Radiophysics and Electronics of NASU, Kharkiv, Ukraine Maslov V.A. Department of Quantum Radiophysics, V.N. Karazin Kharkiv National University, Kharkiv, Ukraine Odarenko E. N. Kharkiv National University of Radio Electronics, Kharkiv, Ukraine In this paper, the modeling of the wave front in the interaction of electromagnetic radiation with plane circular metallic gradient gratings is presented. It is shown that a
36 Book of Abstracts plane circular gradient grating whose filling factor increases in the direction from the center to the edges has the properties of a concave partially transparent mirror and a focusing lens. These properties can be useful for the use of such gratings as output mirrors of terahertz lasers. Such mirrors allow to reduce the diffraction losses inside the resonator and to compensate for the diffraction divergence of the output laser radiation.
Electromagnetic Fields, Antenna Theory, Scattering and RCS
A CONTINUED FRACTION METHOD FOR MODELING AND INVERSION OF TRIAXIAL INDUCTION LOGGING TOOL Gaoyang Zhu, ChenXiang, FanminKong, Kang Li School of Information Science and Engineering Shandong University, Jinan, P.R, China A thorough study on the one-dimensional forward modeling and inversion algorithm for triaxial induction logging tools in multi-layered transverse isotropic formation is presented in this paper. The algorithm is incorporates two parts: the optimized forward modeling and inversion. For the forward simulation, an alternate approach involving Gauss-Quadrature algorithm and continued fraction is used instead of simple fast Hankel transform or Gauss-Quadrature method. This new approach is more precise, robust and efficient for calculate the Bessl integral formulas. Then, the modified Gauss-Newton algorithm is used to invert the layered anisotropy. The positive constant, and Armijo method are introduced to search step length to inverse the vertical conductivity and horizontal conductivity of the anisotropy formation. The algorithm is shown to agree with the theory of triaxial induction logging.
MICROWAVE STARING CORRELATED IMAGING BASED ON 3-DIMENSINAL RANDOMLY DISTRIBUTED ANTENNA ARRAY Yuanyue Guo, Hongmin Li, Falin Liu and Dongjin Wang Key Laboratory of Electromagnetic Space Information, Chinese Academy of Science, University of Science and Technology of China, Hefei, China In this paper, we demonstrate a new three dimensional (3D) randomly distributed antenna array for microwave staring correlated imaging. Its construction method is presented and the imaging model based on it is established; In order to characterize its random spatial arrangement of array antennas quantitatively, 3D random distributed entropy is defined; Based on the optimal model of maximizing the distribution entropy, optimal random distribution of 3D antenna array can be obtained by using genetic
37 Book of Abstracts algorithm. Numerical simulation confirms its validity of the proposed 3D antenna array in improving its stochastic characteristics of radiation fields and achieving better imaging results
SPECIFIC RCS FOR ON-GROUND RADIOLOCATION TARGET Maxim Legenkiy, Alexander Maslovskiy Department of Theoretical Radiophysics, V.N.Karazin Kharkiv National University, Kharkiv, Ukraine The issue of radar visibility reducing of objects is currently very topical. Interest in this subject is due to the variety of different radars, reconnaissance drones and homing rockets and other high-precision weapons. The most popular way of radar visibility reducing of complex shape target is applying of radio absorbing cloak and optimization of the object design. However, both methods have their own drawbacks, one of which is the high cost of radio absorbing materials and difficulty in changes in design of finished object. Thus it is apparent, that one needs for some kind of method, which would allow assessing the contribution of each radar visibility reducing method. In this paper the angular dependence of the radar cross section data for the two on-ground facilities are compared. Radar data processing method with new introducing quantities is proposed. This method allows getting quickly and accurately assessing to the data about visibility of the facility, located on any of the underlying surfaces, as well as evaluating the effectiveness of visibility reducing events.
AIRBORNE DIRECTIONAL ANTENNAS L.V. Sibruk, R.O. Zadorozhnii, D.P. Bondarenko, I.V. Syniak National Aviation University, Kyiv, Ukraine The design and operation principle of the directional antenna system for tactical unmanned aerial vehicles are considered. Simulation and experimental results are present.
EMISSION CHARACTERISTICS MEASUREMENT OF PHASED ARRAY TRANSMITTER BASED ON ULTRA-WIDEBAND DUAL POLARIZED VIVALDI ARRAY Donglin Su , Bo Tian , Zihua Zhao, Fan Zhang School of Electronics and Information Engineering, Beihang University, Beijing, China In this paper, a new method of measuring the emission characteristics of phased array transmitter by receiving antenna array is proposed. Compared to traditional method that only gets the suppression of harmonic and spurious emission, the proposed method that based on direction-of-arrival (DOA) estimation and broadband sweep measurement also measures the effect of spatial power-combining which is significant for beamforming. In order to meet the measurement requirements, a receiving antenna array composed of ultra-wideband dual polarized Vivaldi antennas operating in
38 Book of Abstracts frequency range from 1 GHz to 9 GHz is designed. The influence of mutual coupling on array response is described in detail. The validity of the method of measurement and the design of the receiving antenna array are verified by numerical calculations and measured data.
THE FAST COMPUTATION OF THE ELECTROMAGNETIC SCATTERING BY USING THE COMPLEX LINE SOURCE TYPE GREEN’S FUNCTION IN THE METHOD OF MOMENTS Deniz Kutluay, Taner Oğuzer Electrical and Electronics Eng. Dept., Dokuz Eylül University, Buca, İzmir-Turkey This study introduces an alternative approach to combination of the complex line source method with the numerical solution of the integral equation in the wave scattering problems. We replace the real position vector by a complex quantity and generate a complex line source beam. As a result, a strongly localized impedance matrix is obtained. Then the overall running time and the memory storage are reduced drastically. In addition, far zone interactions are limited only to radiation from the small regions near to the edges.
A NEW HYBRID APPROACH FOR NANOSCALE ANTENNAS IN QUANTUM REGIONS Chen Xiang, Qimeng Ren, Fanmin Kong, Kang Li School of Information Science and Engineering, Shandong University, Jinan, P.R.China Nanoscale quantum effects are key elements in quantum optics and sensing. However, it is difficult to simulate the quantum region. The computational cost is expensive because we must solve many unknows to satisfy two governing equations for electromagnetic fields and electrons. Here we present a direct approach to simulate quantum dots without any approximation. The electromagnetic fields are replaced by the scalar and vector potentials to save the simulation time.
A NOVEL METHOD FOR INTERFERENCE CANCELLATION USING POLARIZATION FILTER Tohid Tonekaboni, Yaser Norouzi, Ahad Rajabi Amirkabir University of Technology, Tehran ,Iran In this paper, a novel method for calculating virtual polarization filter is described. Interferences located in main lobe direction cause target masking. Unfortunately traditional adaptive beamformers and eigen subspace projection methods can’t suppress interference signals effectively. By using sample data and scanning property of antenna, orthogonal polarization decomposition and estimation is employed based on characteristics of antenna so that the interference can be diminished. In this paper, a novel method for calculating virtual polarization filter is described . Our new method tries to calculate polarization filter coefficients by using jammer estimated polarizations.
39 Book of Abstracts Because we used polarization information of interference in filter designation it can unmask target robustly. Simulation results show that this method can unmask target effectively and extract target range cells and improve target identification.
SAR and ISAR
BLIND ESTIMATION OF SPECKLE CHARACTERISTICS FOR SENTINEL POLARIMETRIC RADAR IMAGES Victoriya Abramova, Sergey Abramov, Vladimir Lukin Dept of Transmitters, Receivers and Signal Processing, National Aerospace University, Kharkov, Ukraine Karen Egiazarian Tampere University of Technology, Tampere, Finland A priori knowledge on noise characteristics is important for image processing applications in remote sensing. Although their estimation is sometimes possible in an interactive mode, blind estimation is becoming actual nowadays. For radar images, one needs to accurately estimate speckle variance. In this paper, we propose a blind and fully automatic method to perform such an estimation. One of the advantages of this method is that it is applicable for spatially correlated speckle often taking place in practice. The proposed method is applicable for multichannel data processing since it analyzes data in blocks of difference images. We have verified the proposed method on dual-polarization Sentinel-1 radar images and have obtained the results of high accuracy.
DESIGN, DEPLOYMENT, AND LOCALIZATION OF BIDIRECTIONAL CORNER REFLECTORS FOR TERRASAR-X Adnan Saeed and Olaf Hellwich Technical University Berlin, Germany This paper reports on the use of a distinctively designed and deployed bi- directional trihedral corner reflector pair. The reflector is adjustable having two degrees of freedom in azimuth and elevation directions with one end of the pair firmly attached together. One side of the pair is visible to the satellite in its ascending orbital pass while other side is visible in the descending pass. Lightweight Aluminum and assemble-able design makes it easy to be manufactured and transported to the rooftops. Moreover, the design is simulated using a general purpose electromagnetic simulation software, CST and the Radar Cross Section is measured and verified. The installed reflectors were identified and localized in the acquired TerraSAR-X image data.
40 Book of Abstracts 24 GHZ SHORT RANGE RADAR SYSTEM MEASUREMENTS FOR SYNTHETIC APERTURE RADAR IMAGING Alper Caliskan, Yunus Emre Yamac, Husamettin Uysal, Ahmet Serdar Turk, Ahmet Kizilay Department of Electronics and Communication Engineering, Yildiz Technical University, Istanbul, Turkey Melek Orhan Department of Electronics and Communication Engineering, Istanbul Technical University, Istanbul, Turkey In this paper, 24 GHz short-range radar measurements and synthetic aperture radar (SAR) imaging results are presented. The designed radar system has one transmitter and one receiver channel and 24 GHz output carrier signal is modulated with 50 MHz square wave at the transmitter channel. In the measurement, horn antennas are used for synthetic radar imaging and A-scan data were obtained with 90 m range. We applied SAR imaging algorithm in order to improve the image resolution to raw B-scan data. Raw and processed data are demonstrated comparatively for target detection performance.
AIRBORNE INTERFEROMETRIC RADAR WITH 2D FREQUENCY DOMAIN SYNTHESIZING Boris N. Fedotov I. Chernyakhovsky National Defense University of Ukraine, Kiev, Ukraine Sergey A. Stankevich Scientific Centre for Aerospace Research of the Earth, Kiev, Ukraine The computing analysis and design principles of airborne interferometric radar with 2D frequency domain synthesizing are discussed in this paper. The kind of probing signal and basic equations for its parameters calculation are defined. The algorithm for estimation of land surface elevations over reference horizontal plane is presented. The novel structure of airborne interferometric radar for restoration of reflectance’s 3D distribution within imaging scene is offered.
ISAR IMAGING WITH WIDEBAND V-FM SIGNALS Xiaoxia Xie, Xiaoyi Pan, Zhaoyu Gu, Shaoqi Dai, Jiyuan Chen School of Electronic Science and Engineering,National University of Defense Technology, Changsha, China This paper focuses on the two-dimensional (2D) high-resolution image reconstruction with wideband V-style frequency modulation (V-FM) signals, where the range compression of the received signals are achieved by the dual-channel dechirping and the azimuth compression is done via the traditional Fourier transform (FT). The superiority of V-FM signals are two folds: 1) The system ambiguity appeared in range and velocity can be conquered since V-FM signals have «thumbtack» ambiguity 41 Book of Abstracts function; 2) the wideband V-FM signals can reduce the sampling rate significantly compared with the matched-filtering-based imaging methods. Finally, simulated trials with the target of point scatterers modeling are utilized to demonstrate the effectiveness of V-FM signals in ISAR imaging.
TRANSMITTER POWER COMPARISON BETWEEN INCOHERENT NOISE AND COHERENT DECEPTIVE JAMMING AGAINST SYNTHETIC APERTURE RADAR Yongcai Liu, Wei Wang, Shaoqi Dai, Bin Rao, Guoyu Wang College of Electronic Science and Engineering, National University of Defense Technology, Changsha, Hunan, People’s Republic of China During the rapid development of synthetic aperture radar (SAR), jamming techniques against SAR have aroused intensive study interests in the field of electronic counter measures (ECM). In this paper, we compare the jammer’s transmitter power required by coherent deceptive jamming against SAR and by incoherent noise jamming against SAR. It is pointed out that, in order to yield same jamming-to-signal ratio (JSR) in SAR image domain, the ratio of the transmitter power of incoherent noise jamming to that of coherent deceptive jamming should be the average pulse compression gain (APCG), rather than, the pulse compression gain (PCG) in SAR image formation processing, which is different from the opinion of some literatures. Theoretical analyses are verified by simulation results.
42 Schematic map of the National Aviation University Hotel “NAU” Station of the trolleybus #27 “Garmatna street” Otradniy Avenue Electronics Department, Organizing Committee Building #3 rd room 3-407, 3 floor
Station of the trolleybus #27 “Lebedeva Kumacha street” (from underground station “Shulyavskaya”)
Building 1 Academic Council Hall, ГВФ-cafe Restaurant “Student Bistro”
Station of the trolleybus #27 Kosmonavta Komarova Avenue (to underground station “Shulyavskaya”) Station of the bus #69 Station of trams #1, #3 to the center of the city from the center of the city Station “National Aviation University”