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Classic VHF Sound Broadcasting at Its Very Best
Articles Solid-state VHF FM Transmitters SR6..E1 ured or integrated, even using standard equipment, to fulfill specific customer requirements. Classic VHF sound broadcasting The VHF FM transmitters can be used as stand-alones, in passive (1+1) or (n+1) at its very best standby configurations and with exciter standby. All modules and units are accommodated in a 19-inch rack for Despite digital audio and video broadcasting, forecasts still anticipate an attrac- ease of access. The main modules can tive market ahead for analog FM transmitter technology over the next 15 to be replaced without disconnecting 20 years. Rohde & Schwarz responded to these prospects and revised its highly cables. So a transmitter can be set successful, tried and tested generation of solid-state transmitters. The result is up very quickly and, in the unlikely even more compact transmitters for an excellent price/performance ratio. event of a module failing, it can be exchanged in practically no time. Solid-state VHF FM Transmitter pact design with easy access to major Design and function NR410T1 [1] was thoroughly rede- components, higher MTBF and opera- signed to create the new transmitters tion up to a VSWR of 3. They also inte- 10 kW VHF FM Transmitter SR610E1 SR610E1 for 10 kW, SR605E1 for grate new remote control standards (FIG 1) is taken as an example to 5 kW and SR602E1 for 2.5 kW. and feature high flexibility in terms of explain transmitter design and func- Compared to their predecessors they system integration. tion. It comprises the following main are superior in efficiency, in their com- modules (FIG 2): • VHF FM Transmitter SU135 (exciter), Characteristics • four VHF Amplifiers VU320, • 4-way splitter, These VHF transmitters for FM sound • 4:1 combiner, broadcasting operate in the frequency • high-power supply unit with two band 87.5 MHz to 108 MHz and gen- transformers, rectifier block, filtering erate a nominal output power of 10 kW, and four DC converters of 3 kW 5 kW or 2.5 kW into 50 Ω at an each, efficiency of over 60 %. -
Cetiie B Tia Nature Red Acted
Probabilistic Methods for Systems Engineering with Application to Nanosatellite Laser Communications by Emily B. Clements Submitted to the Department of Aeronautics and Astronautics in partial fulfillment of the requirements for the degree of Doctor of Philosophy at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY June 2018 Massachusetts Institute of Technology 2018. All rights reserved. Autholr Signature redacted (J Department of Aeronautics and Astronautics May 24,2018 Cetiie b tianature red acted Kerri L. Cahoy Associate Professor of Aeronautics and Astronautics red acted Thesis Supervisor Certified by ... Signatu re ........................ David 0. Caplan Senior Staff, MIT Lincoln Laboratory Certified by, S ignature redacted Jeffrey A. Mendenhall Lincoln Laboratory C ignature red acted Senior Staff, MIT Certified by. ................................... David W. Miller Jerome Hunsaker Professor of Aeronauticq and Astronautics Accepted by......... .................. Signature redacted MASSACHUSETTS INSTITUTE Hamsa Balakrishnan OF TECHNOLOGY Associate Professor of Aeronautics and Astronautics JUN 28 2018 Chair, Graduate Program Committee LIBRARIES ARCHIVES 2 Probabilistic Methods for Systems Engineering with Application to Nanosatellite Laser Communications by Emily B. Clements Submitted to the Department of Aeronautics and Astronautics on May 24, 2018, in partial fulfillment of the requirements for the degree of Doctor of Philosophy Abstract Risk-tolerant platforms such as nanosatellites may be able to accept moderate perfor- mance uncertainty -
An Illustrated Overview of ESM and ECM Systems
Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis Collection 1993-09 An illustrated overview of ESM and ECM systems Petterson, Göran Monterey, California. Naval Postgraduate School http://hdl.handle.net/10945/26584 DUDLEY KNOX LIBRARY NAVAL POSTGRADUATE SCHOOL MONTEREY CA 93943-5101 Approved for public release, distribution is unlimited. An Illustrated Overview of ESM and ECM Systems by Goran Sven Erik Pettersson Major, Swedi^ Army M.S., Swedish Armed Forces Staff and War College, 1991 Submitted in partial fiilfillment of the requirements for the degree of MASTER OF SCIENCE IN SYSTEMS ENGINEERING from the NAVAL POSTGRADUATE SCHOOL September 1993 Form Approved REPORT DOCUMENTATION PAGE OMB No 0704-0188 PuDiK rfooninq Bufden »or this collfction o< inforfnation n estimatM to ait'aqt ' hour [>«' 'eiponse. including the time for reviewing mstruclions. learcning e«isting data sources, gathering and maintaining the data needed, and completing and revie«ving the collection of information Send comment! regarding this burden estimate or any other aioect of thij collection of information, including suggestions for reducing this Burden to >A(ashington Hesdauaners Services Directorate for information Operations and Reports. 1215 jeflerjon Davis Highway. Sune 1204 Arlington, vfl 22202-4302 and to the Office of Management and Budget. Papenwork Reduaion Proiecl (0704-0188). Washington. DC 20503 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3 REPORT TYPE AND DATES COVERED September 993 Master's Thesis 4. TITLE AND SUBTITLE 5. FUNDING NUMBERS An Illustrated Overview of ESM and ECM Systems 6. AUTHOR(S) Pettersson, Goran, S. E. 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) PERFORMING ORGANIZATION REPORT NUMBER Naval Postgraduate School Monterey, CA 93943-5000 9. -
Aircraft Survivability 14SPRING ISSUE Program Office SURVIVABILITY
AIRCRAFT published by the Joint Aircraft Survivability 14SPRING ISSUE Program Office SURVIVABILITY PROPULSION SURVIVABILITY Large Engine Vulnerability to MANPADS page 6 F135 Propulsion System LFT page 12 PT6A Engine Vulnerability page 22 Lightweight Integrally Armored Helicopter Floor page 25 Aircraft Survivability is published three times a year by the Joint Aircraft Survivability Program TABLE OF CONTENTS Office (JASPO) chartered by the US Army Aviation & Missile Command, US Air Force Aeronautical Systems Center, and US Navy Naval Air Systems Command. 4 NEWS NOTES by Dennis Lindell 5 JCAT CORNER by CAPT Cliff Burnette, Lt Col Douglas Jankovich, and CW5 Mike Apple 6 LARGE ENGINE VULNERABILITY TO MANPADS by Greg Czarnecki, John Haas, Brian Sexton, Joe Manchor, and Gautam Shah This article summarizes an assessment of large aircraft engine vulnerability to the man- portable air defense system (MANPADS) missile threat. Testing and modeling involved MANPADS shots into operating/rotating CF6-50 engines, which are typical of large transport aircraft. 12 F135 PROPULSION SYSTEM LIVE FIRE TEST (LFT) by Charles Frankenberger JAS Program Office As part of the F-35 LFT Program, the LFT team recently conducted a series of LFTs to assess 735 S Courthouse Road Suite 1100 the Pratt & Whitney F135 propulsion system against ballistic damage. The F-35 LFT Master Plan Arlington, VA 22204-2489 http://jaspo.csd.disa.mil includes a series of propulsion system tests designed to better understand the capabilities and vulnerabilities of the F135, once damaged, and to address assumptions used in the F-35 vulner- Views and comments are welcome ability assessment. and may be addressed to the: 15 EXCELLENCE IN SURVIVABILITY— Editor Dennis Lindell DR. -
Laboratory Radiative Accretion Shocks on GEKKO XII Laser Facility for POLAR Project
Article submitted to: High Power Laser Science and Engineering, 2018 April 10, 2018 Laboratory radiative accretion shocks on GEKKO XII laser facility for POLAR project L. VanBox Som1,2,3, E.´ Falize1,3, M. Koenig4,5, Y.Sakawa6, B. Albertazzi4, P.Barroso9, J.-M. Bonnet- Bidaud3, C. Busschaert1, A. Ciardi2, Y.Hara6, N. Katsuki7, R. Kumar6, F. Lefevre4, C. Michaut10, Th. Michel4, T. Miura7, T. Morita7, M. Mouchet10, G. Rigon4, T. Sano6, S. Shiiba7, H. Shimogawara6, and S. Tomiya8 1CEA-DAM-DIF, F-91297 Arpajon, France 2LERMA, Sorbonne Universit´e,Observatoire de Paris, Universit´ePSL, CNRS, F-75005, Paris, France 3CEA Saclay, DSM/Irfu/Service d’Astrophysique, F-91191 Gif-sur-Yvette, France 4LULI - CNRS, Ecole Polytechnique, CEA : Universit Paris-Saclay ; UPMC Univ Paris 06 : Sorbonne Universit´e- F-91128 Palaiseau Cedex, France 5Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan 6Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan 7Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan 8Aoyamagakuin University, Japan 9GEPI, Observatoire de Paris, PSL Research University, CNRS, Universit´eParis Diderot, Sorbonne Paris Cit´e,F-75014 Paris, France 10LUTH, Observatoire de Paris, PSL Research University, CNRS, Universit´eParis Diderot, Sorbonne Paris Cit´e,F-92195 Meudon, France Abstract A new target design is presented to model high-energy radiative accretion shocks in polars. In this paper, we present the experimental results obtained on the GEKKO XII laser facility for the POLAR project. The experimental results are compared with 2D FCI2 simulations to characterize the dynamics and the structure of plasma flow before and after the collision. -
An Update on the CCSDS Optical Communications Working Group Interoperability Standards
An Update on the CCSDS Optical Communications Working Group Interoperability Standards Bernard L. Edwards Robert Daddato NASA Goddard Space Flight Center European Space Agency Greenbelt, MD 20771 USA Darmstadt, Germany Klaus-Juergen Schulz Randall Alliss European Space Agency Northrop Grumman Corporation Darmstadt, Germany McLean, VA 22102 USA Jon Hamkins Dirk Giggenbach NASA Jet Propulsion Laboratory DLR Pasadena, CA 91109 USA Oberpfaffenhofen, Germany Bryan Robinson Lena Braatz MIT Lincoln Laboratory Booz Allen Hamilton, Inc. Lexington, MA 02420 USA McLean, VA 22102 USA Abstract – International space agencies around the one space agency’s spacecraft could be served by world are working together in the Interagency another space agency’s ground antennas. Operation Advisory Group (IOAG) and the Consultative Committee for Space Data Systems The overall development of international space (CCSDS) to develop interoperability standards for optical communications. The standards support communication standards for cross support is optical communication systems for both Near Earth coordinated by the Interagency Operations and Deep Space robotic and human-rated spacecraft. Advisory Group (IOAG) [1]. The IOAG is an The standards generally address both free space links organization made up of international space between spacecraft and free space links between agencies that provides a forum for identifying spacecraft and ground. This paper will overview the common needs and coordinating space history and structure of the CCSDS Optical communications policy, high-level procedures, Communications Working Group and provide an technical interfaces, and other matters related to update on the set of optical communications interoperability and space communications. The standards being developed. The paper will address the ongoing work on High Photon Efficiency IOAG considers the future requirements and trends communications, High Data Rate communications, in spacecraft communications needs and assigns and Optical On/Off Keying communications. -
EN 301 489-11 V1.1.1 (2002-03) Candidate Harmonized European Standard (Telecommunications Series)
ETSI EN 301 489-11 V1.1.1 (2002-03) Candidate Harmonized European Standard (Telecommunications series) Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 11: Specific conditions for analogue terrestrial sound broadcasting (Amplitude Modulation (AM) and Frequency Modulation (FM)) service transmitters 2 ETSI EN 301 489-11 V1.1.1 (2002-03) Reference REN/ERM-EMC-225-11 Keywords broadcast, EMC, radio, regulation, testing, VHF ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: [email protected] Copyright Notification No part may be reproduced except as authorized by written permission. -
Emergency Broadcasting Over CATV Channel Using FM Subcarrier Technology
International Journal of Future Generation Communication and Networking Vol. 9, No. 12 (2016), pp. 1-16 http://dx.doi.org/10.14257/ijfgcn.2016.9.12.01 Emergency Broadcasting over CATV Channel using FM Subcarrier Technology Yan Ma1*, Chunjiang Liu, SenHua Ding and Naiguang Zhang 2 1Communication University of China 2Academy of Broadcasting Science, SARFT [email protected] 2{liuchunjiang, dingsenhua, zhangnaiguang}@abs.ac.cn Abstract Emergency broadcasting is of importance method to alert people when disaster happens, but the development of network is slow in Chinese rural areas. So it is necessary to propose an emergency broadcasting solution for Chinese rural areas based on the available network. In this paper, a method that adopts FM subcarrier technology over CATV channel to broadcast emergency message have been proposed. In the method, emergency program is transmitted by CATV channel and emergency order is carried in FM subcarrier. As usual, to communicate emergency message to the public efficiently and effectively, a complete emergency broadcasting system should have following functions such as parallel broadcasting, compatibility, robustness, security, and so on. In the context, to satisfy above requirements, corresponding system construction, communication scheme, and message transmission protocol have been proposed as well. To verify the practicability, the solutions have been test in Chinese rural areas MiYun and gain good results. Keywords: Emergency Broadcasting, Cable FM Subcarrier, RDS, Transport Protocol 1. Introduction 1.1. Background Emergency broadcasting message can be transported by varies of ways, such as mobile network [1, 2], Internet network [3], FM network [4], digital TV network [5] and so on. In the article, we pay our focus on researching emergency transportation scheme for rural areas in China. -
Middle Eastern Digital Media, Broadband and Internet Markets
A BUDDECOMM REPORT MIDDLE EASTERN DIGITAL MEDIA, BROADBAND AND INTERNET MARKETS 9th Edition Researcher: Tine Lewis Copyright 2010 Published in August 2010 Paul Budde Communication Pty Ltd Tel 02 4998 8144 – Int: 61 2 4998 8144 5385 George Downes Drive Fax 02 4998 8247 – Int: 61 2 4998 8247 BUCKETTY NSW 2250 Email: [email protected] AUSTRALIA Website: www.budde.com.au Middle Eastern Digital Media, Broadband and Internet Markets Disclaimer: The r eader a ccepts a ll r isks a nd responsibility f or l osses, da mages, costs a nd other c onsequences resulting directly o r i ndirectly f rom u sing this report or from reliance on any information, opinions, estimates a nd forecasts c ontained herein. T he i nformation c ontained herein ha s been obtained f rom sources believed to be reliable. Paul Budde Communication Pty Ltd disclaims all warranties as to the accuracy, co mpleteness o r a dequacy of s uch i nformation an d s hall have n o l iability f or er rors, omissions or inadequacies in the information, opinions, estimates and forecasts contained herein. The materials in this report are for informational purposes only. Prior to making any investment decision, it is recommended that the reader consult directly with a qualified investment advisor. Forecasts: The following provides some background to our scenario forecasting methodology: • This report i ncludes w hat we t erm s cenario forecasts. B y d escribing l ong-range s cenarios w e identify a band within which we expect market growth to occur. -
Sensor Solutions for Defense, Aerospace and Security Applications - 1.1
Sensor Solutions for Defense, Aerospace and Security Applications - 1.1 Photon detection for tomorrow’s cutting-edge applications. Making Your World Safer & More Secure. At Excelitas we are sensing what you need for a safer and innovative tomorrow. From Silicon Photodiodes to InGaAs Photodiodes, Laser detection modules and Pulsed Laser Diodes, Mil Standard and Space Qualified Modules, our Defense & Aerospace Sensors Technologies are addressing your high-performance and high volume applications. You can rely on our world-class design, manufacturing and R&D facility in Montreal, Canada, with integrated wafer fab, assembly and test operation all at the same location. SECTION 1 • AVALANCHE PHOTODIODES • Silicon APDs • InGaAs APDs SECTION 2 • PIN PHOTODIODES • Silicon PIN Photodiodes • InGaAs PIN Photodiodes SECTION 3 • YAG AND QUADRANT DETECTORS SECTION 4 • OPTICAL RECEIVERS • Silicon Optical Receivers • InGaAs Optical Receivers Our Sensors Solutions enable: SECTION 5 • PULSED LASER DIODES • 905 nm Pulsed Laser Diodes Defense Electronics/ • 1064 nm Pulsed Laser Diodes Optronics Systems • 1550 nm Pulsed Laser Diodes • Laser Range Finder (LRF) • Target Designator SECTION 6 • EXACTD-362, DETECTOR FOR LASER WARNING SYSTEMS • LIDAR and LADAR SECTION 7 • DEFENSE AND AEROSPACE SOLUTIONS • Laser Scanning • Obstacle Avoidance Scanner SECTION 8 • PHOTON DETECTION SOLUTIONS • Laser Warning Systems (LWS) • Training and Simulation Next Generation Smart Munitions • Laser Proximity Fuze • Height of Burst Sensor • Semi-Active Laser Seeker (SAL) • Laser Beam Rider Transmitter • Laser Beam Rider Receiver • Altimeter IMPORTANT NOTE This catalog presents only standard products. Please contact Excelitas with your requirements to have your product designed to your specification. We have the ability to customize our products to match customer-specific requirements. -
Ministry of Defence Acronyms and Abbreviations
Acronym Long Title 1ACC No. 1 Air Control Centre 1SL First Sea Lord 200D Second OOD 200W Second 00W 2C Second Customer 2C (CL) Second Customer (Core Leadership) 2C (PM) Second Customer (Pivotal Management) 2CMG Customer 2 Management Group 2IC Second in Command 2Lt Second Lieutenant 2nd PUS Second Permanent Under Secretary of State 2SL Second Sea Lord 2SL/CNH Second Sea Lord Commander in Chief Naval Home Command 3GL Third Generation Language 3IC Third in Command 3PL Third Party Logistics 3PN Third Party Nationals 4C Co‐operation Co‐ordination Communication Control 4GL Fourth Generation Language A&A Alteration & Addition A&A Approval and Authorisation A&AEW Avionics And Air Electronic Warfare A&E Assurance and Evaluations A&ER Ammunition and Explosives Regulations A&F Assessment and Feedback A&RP Activity & Resource Planning A&SD Arms and Service Director A/AS Advanced/Advanced Supplementary A/D conv Analogue/ Digital Conversion A/G Air‐to‐Ground A/G/A Air Ground Air A/R As Required A/S Anti‐Submarine A/S or AS Anti Submarine A/WST Avionic/Weapons, Systems Trainer A3*G Acquisition 3‐Star Group A3I Accelerated Architecture Acquisition Initiative A3P Advanced Avionics Architectures and Packaging AA Acceptance Authority AA Active Adjunct AA Administering Authority AA Administrative Assistant AA Air Adviser AA Air Attache AA Air‐to‐Air AA Alternative Assumption AA Anti‐Aircraft AA Application Administrator AA Area Administrator AA Australian Army AAA Anti‐Aircraft Artillery AAA Automatic Anti‐Aircraft AAAD Airborne Anti‐Armour Defence Acronym -
Itu-R Bs.1894 (2011/05)
ITU-R BS.1894 (2011/05) BS ITU-R BS.1894 ii (IPR) (ITU-T/ITU-R/ISO/IEC) ITU-R 1 1 http://www.itu.int/ITU-R/go/patents/en http://www.itu.int/publ/R-REC/en BO BR BS BT F M P RA RS S SA SF SM SNG TF V ITU-R 1 2011 ITU 2011 (ITU) 1 ITU-R BS.1894 ITU-R BS.1894 (2011) (FM) ITU-R BS.1114 650 (CRPD) 9 Eureka 147 A ITU-R BS.1114 C ISDB-TSB F (DAB) IBOC DSB (FM) A (RDS) ITU-R BS.643 (DARC) ITU-R BS.1194 1 ITU-R BS.1114 1 500 ITU-R BS.1894 2 2 2 C F A 1 FM 2 1 (DSB) (Advanced application services – Closed caption) AAS-CC (Digital audio broadcasting) DAB (Digital Radio Mondiale) DRM (Digital sound broadcasting) DSB (In-band on-channel) IBOC (Main service channel) MSC (Packetized elementary stream) PES SB (ntegrated services digital broadcasting – terrestrial sound broadcasting) DSB 1 bit/s 500 1 bit/s 500 ISO/IEC 11172-3 ITU-R BS.1114 ISO/IEC 13818-3 MPEG II (DAB) A ITU-R BS.1114 NRSC-5B AAS – CC (IBOC) C ITU-T H.222.0 ITU-R BS.1114 ARIB STD-B24 PES (ISDB-TSB) F 3 1 3 ITU-R BS.1894 ARIB STD-B24 Vol. 1 Part 3: Data coding and transmission specification for digital broadcasting, Volume 1, Part 3 – Coding of caption and superimpose. ISO/IEC 11172-3: Information technology – Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s – Part 3: Audio.