Radio-Frequency Electronics Circuits and Applications
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Radar Speed-Gun Controller.Pdf
SINCE THE FCC HAS ALLOWED THE COM- radar equipment. It works by generating a beam toward a target whose speed is being ~nercialand private use of some radar fre- false target. monitored. That target can be any object, quencies, interest in those frequencies has Radar false-target generators are used such as a speeding baseball--or a speed- greatly increased. Amateur-radio oper- by the military as electronic camouflage ing motorist. Because of the nature of ators are actively experimenting with on our stealth aircraft to fool the enemy's microwave transmissions, the signals are radar for communications. On the com- radar-tracking missiles. A similar tech- reflected by the target back toward their mercial front, the burglar-alarm industry nique is used in this radar gun calibrator. source. has turned to radar for intrusion-detection To better understand the technique, we Because of the Doppler effect, the fre- alarms. Boaters are using radar to guide should first understand how radar speed- quency of the reflected signal is slightly their crafts through hazardous fog. Even guns work. higher than the original transmitted sig- professional baseball teams are getting nal. For each mile per hour an object is into the act with radar guns being used to How radar works travelling toward the radar speed-gun, the time the speed of their pitchers' deliv- The police have been using radar to reflected signal received by the gun will eries. And of course everyone is familiar measure vehicle speed since the late be shifted about 31 Hz higher. In the radar with radar through its use by highway 1940's. -
Survey of Various Methods Used for Speed Calculation of a Vehicle
International Journal on Recent and Innovation Trends in Computing and Communication ISSN: 2321-8169 Volume: 3 Issue: 3 1558 - 1561 _______________________________________________________________________________________________ Survey of Various Methods used for Speed Calculation of a Vehicle Mr. Sairaj Bhatkar #1, , Mr. Mayuresh Shivalkar #2, Mr. Bhushan Tandale #3, Prof. P.S. Joshi #4 #1Student, Department of computer Engineering, Rajendra Mane college of engineering and technology, Ambav, Devrukh, Ratnagiri, Maharashtra, India #2Student, Department of computer Engineering, Rajendra Mane college of engineering and technology, Ambav, Devrukh, Ratnagiri, Maharashtra, India #3Student, Department of computer Engineering, Rajendra Mane college of engineering and technology, Ambav, Devrukh, Ratnagiri, Maharashtra, India #4Assistant Professor, Department of computer Engineering, Rajendra Mane college of engineering and technology, Ambav, Devrukh, Ratnagiri, Maharashtra, India 1 [email protected] 2 [email protected] 3 [email protected] 4 [email protected] Abstract― It is a survey paper of various method used for speed calculation of vehicles. The major purpose of vehicle speed detection is to provide a number of ways that law enforcement agencies can enforce traffic speed laws. The most famous methods include using RADAR (Radio Detection and Ranging) and LIDAR (Light Detection and Ranging) devices to detect the speed of a vehicle. RADAR use microwaves pules and LIDAR use coherent light beam for speed calculation. The SDCS (Speed Detection Camera System) and SMBI (Single Motion Blurred Image) method are also use on high traffic area to measure speed of vehicle using video stream and single image captured by stationary camera. Keywords— RADAR (Radio Detection and Ranging), LIDAR (Light Detection and Ranging), SDCS (Speed Detection Camera System), SMBI (Single Motion Blur Image __________________________________________________*****_________________________________________________ I. -
Report of Contributions
MT25 Conference 2017 - Timetable, Abstracts, Orals and Posters Report of Contributions https://indico.cern.ch/e/MT25-2017 MT25 Conferenc … / Report of Contributions 3D Electromagnetic Analysis of Tu … Contribution ID: 5 Type: Poster Presentation of 1h45m 3D Electromagnetic Analysis of Tubular Permanent Magnet Linear Launcher Tuesday, 29 August 2017 13:15 (1h 45m) A short stroke and large thrust axial magnetized tubular permanent magnet linear launcher (TPMLL) with non-ferromagnetic rings is presented in this paper. Its 3D finite element (FE) models are estab- lished for sensitivity analyses on some parameters, such as air gap thickness, permanent magnet thickness, permanent magnet width, stator yoke thickness and four types of permanent magnet material, ferrite, NdFeB, AlNiCO5 and Sm2CO17 are conducted to achieve greatest thrust. Then its 2D finite element (FE) models are also established. The electromagnetic thrusts calculated by 2D and 3D finite element method (FEM) and got from prototype test are compared. Moreover, the prototype static and dynamic tests are conducted to verify the 2D and 3D electromagnetic analysis. The FE software FLUX provides the interface with the MATLAB/Simulink to establish combined simulation. To improve the accuracy of the simulation, the combined simulation between the model of the control system in Matlab/Simulink and the 3D FE model of the TPMLL in FLUX is built in this paper. The combined simulation between the control system and the 3D FE modelof the TPMLL is built. A prototype is manufactured according to the final designed dimensions. The photograph of the developed TPMLL prototype with thrust sensor and the magnetic powder brake as the load are shown. -
IEEE/PES Transformers Committee
Transformers Committee Chair: Sue McNelly Vice Chair: Bruce Forsyth Secretary: Ed teNyenhuis Treasurer: Paul Boman Awards Chair/Past Chair: Stephen Antosz Standards Coordinator: Jim Graham IEEE/PES Transformers Committee Spring 2019 Meeting Minutes Anaheim, CA March 24 – 28, 2019 Unapproved (These minutes are on the agenda to be approved at the next meeting in Fall 2019) TABLE OF CONTENTS GENERAL ADMINISTRATIVE ITEMS 1.0 Agenda 2.0 Attendance OPENING SESSION – MONDAY MARCH 25, 2019 3.0 Approval of Agenda and Previous Minutes – Susan McNelly 4.0 Chair’s Remarks & Report – Susan McNelly 5.0 Vice Chair’s Report – Bruce Forsyth 6.0 Secretary’s Report – Ed teNyenhuis 7.0 Treasurer’s Report – Paul Boman 8.0 Awards Report – Stephen Antosz 9.0 Administrative SC Meeting Report – Susan McNelly 10.0 Standards Report – Jim Graham 11.0 Liaison Reports 11.1. CIGRE – Craig Swinderman 11.2. IEC TC14 – Phil Hopkinson 11.3. Standards Coordinating Committee, SCC No. 18 (NFPA/NEC) – David Brender 11.4. Standards Coordinating Committee, SCC No. 4 (Electrical Insulation) – Evanne Wang 11.5. ASTM D27 – Tom Prevost 12.0 Approval of Transformer Committee P&P Manual - Bruce Forsyth 13.0 Hot Topics for the Upcoming – Subcommittee Chairs 14.0 Opening Session Adjournment CLOSING SESSION – THURSDAY MARCH 28, 2019 15.0 Chair’s Remarks and Announcements – Susan McNelly 16.0 Meetings Planning SC Minutes & Report – Tammy Behrens 17.0 Reports from Technical Subcommittees (decisions made during the week) 18.0 Report from Standards Subcommittee (issues from the week) 19.0 -
5 IX September 2017
5 IX September 2017 http://doi.org/10.22214/ijraset.2017.9038 International journal for research in applied science & engineering technology (ijraset) ISSN: 2321-9653; IC value: 45.98; SJ Impact Factor:6.887 Volume 5 Issue IX, September 2017- Available at www.ijraset.com Hdl Implementation of Algorithm To Detect The Proximity of A Moving Target Km. Sangeeta1, Arun Kumar Singh2, Saurabh Dixit3 Student1,Professor2 Goel Institute of Technology & Management Lucknow,India, Department of Electronics & Communication En- gineering 3Babu Banarasi Das University Lucknow,India, Department of Electronics & Communication Engineering Abstract: Radar Signal Processors heavily possess the capabilities of traditional microprocessors based signal processing systems. Higher performance systems using custom-made silicon, cost too much for the typically small production volumes and are not flexible enough for research applications. The performance of custom-made silicon while maintaining the economies, the Field Programmable Gate Arrays offer too much flexibility in comparison to traditional microprocessor-based solutions. The recent device possess the density and performance to realize a complete radar signal processor in a single FPGA, including complex down conversion of the IF to baseband. The commercially available FPGA boards eliminated the specific chips required for the down conversion and matched filtering. Thus, the use of FPGA has been increased extensively. In the field of motion detection, the researchers have shown various deviation detection methods for efficient detection of small moving targets. These algorithms can detect moving objects deviation in a properly defined attribute space. The deviation is defined as an object distinct from the objects in its neighbourhood. In this work, we are going to increase the proximity range for the moving targets. -
Eletoz/Vie Patented Sept
Sept. 7, 1926. 1,598,673 O. B. BLACKWELL ET AL SECRECY COMMUNICATION SYSTEM Filed Dec. 18, 1920 R (2AA%aeaeAA 8 eletoz/vie Patented Sept. 7, 1926. 1,598,673 UNITED STATES PATENT office. OTTO B. BLACKWELL, OF GARDEN CITY, NEW YORK; DE Loss K. MARTIN, or oRANGE, NEW JERSEY; AND GILBERT S. VERNAM, OF BROOKLYN, NEw YoRK, AssGNORs TO AMERICAN TELEPHONE AND TELEGRAPH. COMPANY, A CoRFoRATION of NEW YORK, sECREGY coMMUNICATIoN sYSTEM. Application filed December 18, 1920. Serial No. 431,721. This invention relates to a signaling sys pear more fully from the detailed descrip 50 tem wherein signals are transmitted by the tion hereinafter given. agency of a high frequency wave modu The arrangements of the invention are ill lated in accordance with said signals, and lustrated in the accompanying drawing, in more particularly to a signalling system em the figure of which is shown a sendingsta ploying a plurality of high frequency tion of a system embodying the invention. 35 waves. It is the object of the invention to In the arrangements of the drawing are rovide a system of communication where shown four low frequency channels 1, 2, 3 y secret communications between stations and 4 from which the low frequency sig 10 may be had to the end that stations, other nals, such as four telephone messages, may than those designed to receive, may not re be transmitted through modulating appara 60 ceive complete, intelligible signals. tus out over a transmission line L. The Heretofore in certain types of signaling modulating apparatus is shown schemati systems, in which a high frequency wave is cally and includes the modulators M., M., 15 utilized as the agency for transmitting the Me and Ma, with which are associated the signals, he signals have been transmitted high frequency sources A, B, C, and D, 65 by electromagnetic waves of a definite high which are of suitable different frequencies. -
IP 202-1 List of Materials
Changes to the List of Materials August 3, 2021 1. Page be(2.3) a. Added Siemens i. CMR May 6, 2021 1. Page Ugn-2 a. Added Aluma-Form i. ENC Series April 27, 2021 1. Page Ugk-2.2 a. Added Prysmian i. PCT Series (15, 25, 35kV) February 9, 2021 1. Page be(4.3) a. Added Southern States single-phase SSR type recloser. February 4, 2021 1. Pages rp(1), rp(1.2) a. Revised “Cantega” to “Hubbell Power Systems”. b. Added trademark to Reliaguard. December 10, 2020 1. Page ap-2 a. Modified page number from “1.1” to “2”. November 18, 2020 1. Pages an-3 and an(3.1) a. Moved Virginia Transformer from page an(3.1) Conditional to page an-3 Full Acceptance. November 6, 2020 1. Page ae-1 a. Added Celeco i. Catalog Numbers: HSCEL, RPCEL October 26, 2020 1. Page Uhb-1.1 a. Added TE Connectivity i. Catalog Numbers: 25 kV, used with loadbreak connectors (without test point) - ELB-25- 200 series without jacket seal, ELB-25-200-ES series with jacket seal October 23, 2020 1. Page p(1) a. Added TE Connectivity (Raychem) i. Catalog number: TIL Series September 30, 2020 1. Pages a(3), ea(4), ea(5) – Added new Hendrix insulator models. a. Catalog Numbers: HPI-15VTC, HPI-15VTP, HPI-25VTC-02, HPI-35VTC-02, HPI-35VTP-02, HPI-LP-14FS/FA, HPI-LP-16F, HPI-CLP-15, HPI-CLP-17, HPI-CLP-20 July 7, 2020 1. Page cm-2 – Added Aluma-Form, Inc. -
Navy Electricity and Electronics Training Series
NONRESIDENT TRAINING COURSE SEPTEMBER 1998 Navy Electricity and Electronics Training Series Module 18—Radar Principles NAVEDTRA 14190 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. Although the words “he,” “him,” and “his” are used sparingly in this course to enhance communication, they are not intended to be gender driven or to affront or discriminate against anyone. DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. PREFACE By enrolling in this self-study course, you have demonstrated a desire to improve yourself and the Navy. Remember, however, this self-study course is only one part of the total Navy training program. Practical experience, schools, selected reading, and your desire to succeed are also necessary to successfully round out a fully meaningful training program. COURSE OVERVIEW: To introduce the student to the subject of Radar Principles who needs such a background in accomplishing daily work and/or in preparing for further study. THE COURSE: This self-study course is organized into subject matter areas, each containing learning objectives to help you determine what you should learn along with text and illustrations to help you understand the information. The subject matter reflects day-to-day requirements and experiences of personnel in the rating or skill area. It also reflects guidance provided by Enlisted Community Managers (ECMs) and other senior personnel, technical references, instructions, etc., and either the occupational or naval standards, which are listed in the Manual of Navy Enlisted Manpower Personnel Classifications and Occupational Standards, NAVPERS 18068. THE QUESTIONS: The questions that appear in this course are designed to help you understand the material in the text. -
Practical Transformer Handbook
Practical Transformer Handbook Practical Transformer Handbook Irving M. Gottlieb RE. <» Newnes OXFORD BOSTON JOHANNESBURG MELBOURNE NEW DELHI SINGAPORE Newnes An Imprint of Butterworth-Heinemann Linacre House, Jordan Hill, Oxford OX2 8DP 225 Wildwood Avenue, Woburn, MA 01801-2041 A division of Reed Educational and Professional Publishing Ltd S. A member of the Reed Elsevier pic group First published 1998 Transferred to digital printing 2004 © Irving M. Gottlieb 1998 All rights reserved. No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England WIP 9HE. Applications for the copyright holder's written permission to reproduce any part of this publication should be addressed to the publishers British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library ISBN 0 7506 3992 X Library of Congress Cataloguing in Publication Data A catalogue record for this book is available from the Library of Congress DLAOTA TREE Typeset by Jayvee, Trivandrum, India Contents Preface ix Introduction xi 1 An overview of transformer sin electrical technology 1 Amber, lodestones, galvanic cells -
Efficiency of a Lidar Speed Gun
International Journal of Electrical, Electronics and Data Communication, ISSN: 2320-2084 Volume-1, Issue-9, Nov-2013 EFFICIENCY OF A LIDAR SPEED GUN 1DATTA SAINATH DWARAMPUDI, 2VENKAT SAI VIVEK KAKUMANU 1,2Electronics and Communication Engineering, Mahatma Gandhi Institute Of Technology, Hyderabad, Andhra Pradesh, India Email: [email protected], [email protected] Abstract— This paper aims at improving the efficiency of a LiDAR speed gun. The efficiency of a LiDAR gun can be improved by adopting improved usage techniques and methods. The improved LiDAR gun usage methods can be helpful in achieving the correct velocity of the target and help security and police forces to maintain law and order, enforce vehicular speed limit and help citizens travel safe. Keywords— RADAR Gun, LiDAR Gun, Doppler Effect, Efficiency. I. INTRODUCTION is the difference between the transmitted frequency and received frequency There was a need of a device which can calculate B. Drawbacks of a RADAR Gun the target’s velocity in order to enforce vehicular The antenna which is used in a radar gun has a speed limit. RADAR gun was the first device which diameter of 2 inches (5.1cm). The antenna produces was invented to calculate the target’s velocity. beam energy in form of a cone whose angle is 22 RADAR guns are replaced LiDAR guns as LiDAR degrees surrounding the line of sight and 44 degrees guns gave more accurate results than RADAR guns. in total width. This region is called as a main lobe LiDAR guns efficiency can be increased by and the intensity of the waves is maximum in this vanquishing their drawbacks. -
19660019609.Pdf
1966019609-002 i 0 • n l _," i i ,, i, i m i "4 VIRGINIA I I .i POLYTECHNIC t ) i INSTITUTE --. i i i i ENGINEERING EXTENSION SERIES CIRCULAR No. 4 YI (In four parts: A,B,C,D) "_ ¢ PART A ._ ! 4 f • zi PROCEEDINGS OF THE CONFERENCE ON -- The Role of 3z""muta' #on" in Space Technology AUGUST 17-21, 1964 Supported by grants from the National Aeronautics and Space Administration and the National Science Foundation; assisted in planning and presentation , by the NASA Langley Rasearch Center. 1966019609-003 ACKNOWLEDGMENTS VPI is indebted to the National Science Foundation for providing funds for travel and expenses for educational personnel attending the conference and to the National Aeronautics and Space Administration (through the • Virginia Associated Research Center) for providing funds for speakers and incidental expenses. VPI is particularly indebted to the Langley Research Center of NASA for assistance in planning the conference and to the NASA in general for providing many of the speakers and session chairmen. The helpful co-operation of Poly-Scientific Division, Litton Precision i Products, Inc. of Blacksburg, for arranging a plant tour showing their facil- ities for manufacturing slip rings and torque motors and for sponsoring the reception before the banquet is also acknowledged, i The conference committee wishes also to express its gratitude to the conference speakers, session chairmen and local personnel who have contri- i ! buted to the success of the meeting. _ The Conference Committee M. L. Collier, Jr., Professor, Engineering Mechanics J. B. Eades, Jr., Head, Aerospace Engineering T. -
Input Transformers
INPUT TRANSFORMERS MANUFACTURE JANUARY 1965 DISCONTINUED (Pile ss Card 1 on Input Transformers) The manufacture of the following input tranformers has been discontinued and it is not considered necessary to maintain cmplete information in the catalogue. For information on codes not listed below, see other cards on input transformers. Code Replaced by Code Replaced by Code Replaced by Code Replaced by 2OOA & B 215A 227C 243B 2olA to T 216A 2288 & B 244A 202A 218B 218G 229A 245A & B 203A to G 218C to F 230A & B 246A 205A to F 218R to N 231A 246C 207A 219A 2328 & B 247B 208A to L 220A 221D 233A & B 247D to H 208M 2408 220B 221D 233C 281A recom. 247K to N 208N to T 221B 224B 2333 & F 2488 208U 231B 221c 224C 233H 272C recm. 250A & B 208W & Y 221D 224A 2335 251A & D 208AA 223B 222A 233L 252B 208AB 223A to D 2348 to D 2538 208AD 224A 234A 2358 2548 208AF to AH 224B 234B 2368 255B to C 209A & B 224C 238A 2553 to H 210A to E 2258 & B 2398 2555 255K 211A to C 2268 240B to J 255K 212A & B 226B <a, 241A & B 256A 212c 618B recom. 226C 233B 241D 2578 213A to C 226D to H 2428 242B 2588 (a) Replaced by a 634B together with one PlZA710 adapter, one P16A771 instruction sheet, form Pl11869 screws and four P242132 washers. INPUT TRANSFORMERS JAUUAK!l 1965 I (File as Card 2 on In1 put Transformers) I Coda Replaced by Code Replaced by Code Replaced by Code Replaced by 259A&B 274A 292D & E 633A 633G 26OAbrB 274C 298A 298B 633B 6331 261A 275A 299B 614A 633D 262A 2JJA to C 600B 638D 263A 279A 601A 6438 DlJ6227 264D 282C 603B 6448 265A to C 285A to D 611A 64JA 64JB 2668 61 B 285G to J 612A 64JC (a> 26JA 285N 613A 65JA 6 B 268A D93983 285B 614A 661B 2698 286A 615A 662A 2JOA to C 28811 2886 61JA 664A 663B 2JOE 288C 618D 669C 2JOF 2705 288D 618B raccm.