Overview

One of the biggest experiments I've always wanted to work on is a homebrew radar system.  No, not some little ultrasonic range finder using pre-made kits, but a true high-power pulse (and maybe Doppler) radar system.  And I think it's now possible...

This project will be continuously "in development."  I have no idea if the final outcome will even work, but I'll try to make all the experiments public and fairly-well documented.  The overall work will be done in a series of sub-sections over the next few months (or even years).  If it all works - great.  If it doesn't...  It'll look cool, and you'll have nice beacon to attract anti-radiation missles.

A very detailed description of how radars operate, and the design of their major component sections, is available in the U.S. Army Aviation Course - Subcourse MM5005: Radar Transmitter manual.  This manual is also available online.

MIT has a free online course Build a Small Radar System Capable of Sensing Range, Doppler, and Synthetic Aperture Radar Imaging which describes how to build a simple S-band radar system.

• Doppler Radar Explanation and Demo Using the Coffee Can Radar  (YouTube)
• Build a Coffee Can Radar  (YouTube)
• Tin Can Radar Forum

Block Diagram

Major Radar Sections

• High-Voltage Power Supply
• Low-Voltage Power Supply
• Pulse-Forming Network
• Pulse Modulator
• Magnetron Pulse Transformer  May not be accurate!  Here for reference purposes only.

General Radar Audio & Video

1. 22C3: I See Airplanes!  by Eric Blossom  (YouTube)
• This lecture describes how to build your own passive radar system using relatively low-cost hardware and free software.  Passive radar systems allow you to determine the position and velocity of aircraft, etc, using broadcast TV and FM radio transmitters as illuminators.  The system works by watching the direct path and reflections from "L" transmitters using "M" coherent receivers at "N" locations.  From the raw data we extract estimates of bi-static range, doppler and angle-of-arrival.  These estimates are fed into a tracking algorithm that attempts to sort airplanes from clutter and noise.
• CCC 22C3 Entry
• Slides  (2.1M PDF)
• Passive Radar  Caution: Wikipedia
2. DEFCON 19: Build Your Own Synthetic Aperture Radar  by Michael Scarito  (YouTube)
• Radar is used extensively by the military, police, weather, air travel, and maritime industries - why not you?  Come learn how to build a radar imaging system on the cheap!  This talk will explain the basics of how radar works as well as how to measure range and velocity of your chosen targets.  You will learn how to use synthetic aperture techniques to generate a two- or even three-dimensional image.  The hardware and software design will be totally opened up so you can go home and build your own system.  The talk will try to run through the basics pretty fast, so some knowledge of electronics or basic physics might help, but is not required!  Regardless of your background, you will see the capabilities of a modern home-built radar system and hopefully get some ideas for your own uses.
3. FMCW Radar with Pluto, the ADF4159, and GNU Radio  (YouTube)
4. Access a Distant 900 MHz Repeater by Bouncing Signals Off an Airplane  (YouTube)
5. The Origins of ARM  Defence suppression and the AGM-45 Shrike anti-radar missile.  (YouTube)
6. RadarVision2 in Operation  Video showing the operation of a RadarVision2 through-the-wall radar device.  (YouTube)
7. Thales Smart-S Mk2 Naval Radar  (YouTube)
8. Thales Radar Video  (YouTube)
9. Tuning the Radar  Funny!  (YouTube)
10. X-Band Doppler Radar Test  Larry's homemade Doppler radar.  (YouTube)
11. ARTHUR - Artillery Hunting Radar  (YouTube)
12. Radar Chaff Shows up on Weather Radar  (YouTube)
13. Army MOS 13R Field Artillery Firefinder Radar Operator  (YouTube)
14. LearningMeasure Episode 7: Radar and Relativity  (YouTube)
15. Radar and it's Applications (1962)  (YouTube)
16. Russian Stealth: The Hunt for the Invisible  (YouTube)
17. Arctic Mission: A Report on DEW Line Activities  From 1955.  (YouTube)
18. History of the Skunk Works - Part 1  (YouTube)
• History of the Skunk Works - Part 2  (YouTube)
• History of the Skunk Works - Part 3  (YouTube)
• History of the Skunk Works - Part 4  (YouTube)
• History of the Skunk Works - Part 5  (YouTube)
• Skunk Works Mysteries Revealed  Interview with Hal Farley, F-117 Test Pilot  (YouTube)
19. The Lockheed SR-71 Blackbird #1  (YouTube)
20. The Lockheed SR-71 Blackbird #2  (YouTube)
21. SR-71 Record Setting Video  (YouTube)
22. The U-2 & TR-1 Story  (YouTube)

Radar Stealth & Radar Countermeasures

  

1. F-117 Stealth Fighter Wreckage  (YouTube)
• Wreckage video of the F-117A (#82-806) stealth airplane shot down on March 27, 1999 over Serbia.  (Note: Zoltan was nowhere near to his unit.  Actual radar tracking and missile launch was done by Djordje Anicic and his colleagues.  Zoltan was accredited with this kill only because he was commanding officer.  Find book SMENA (Shift) by Djordje Anicic and find the truth.
• Vega 31: The Loss of F-117A #82-806
• Kosovo and the Continuing SEAD Challenge
• For Sale: Revered Piece of Yugoslav Past; Downed U.S. Jets are Source of Pride
• Serb Discusses 1999 Downing of Stealth

    

2. Lt. Colonel Dale Zelko's Presentation on his F-117A Being Shot Down  (YouTube)
• Excerpt from an audio presentation by Lt. Colonel Dale Zelko about his shoot down and ejection over Serbia on March 27, 1999.  Including an actual recording of his "mayday" call.  Put to pictures of the F-117 including the wreckage of Zelko's actual aircraft.
• The Night They Saved Vega 31
• SA-3 GOA Missle Info
• F-117 Nighthawk Shootdown over Serbia, 1999 - Animated  (YouTube)

  

3. The Unthinkable, the Unimaginable Happened: A F-117 was Shot Down in Combat  by Lt. Col. Dale Zelko  (YouTube)
• Lt. Col. Dale Zelko reflects on his experience as the only stealth fighter mission shot down during combat and his accomplishment and fortitude in an against-all-odds scenario.  This "Wings & Things Guest Lecture" took place on Jan. 25, 2006.
4. Tour Around the Lockheed F-117 Nighthawk - the "Stealth Fighter"  781 was FSD #2 (Scorpion 2, one of the five YF-117 test airplanes), a test article assigned to 410^th Flight Test Squadron, 412^th Test Wing Edwards AFB, CA.  The RAM appears to have been stripped off.  (YouTube)
5. F-117 Nighthawk Shootdown Over Serbia, 1999 - Animated  (YouTube)
6. Understanding Stealth Technology  Neat little video from Lockheed Martin.  (YouTube)
7. Hitler's Stealth Fighter  Fascinating National Geographic documentary about the Horten Ho 229.  (YouTube)
8. Stealth Aircraft Technology  Older documentary about the various stealth airplanes, includes interviews with several Skunk Works employees.  (YouTube)
9. Federation of American Scientists: F-117A Nighthawk
10. Deep Black: Stealth Aircraft Technology F-117 Combat Tactics  From Dan's Aviation History.
11. Picture of the F-117A Stealth Fighter - 1
12. Picture of the F-117A Stealth Fighter - 2
13. Picture of a Crashed F-117A Stealth Fighter  No nose gear.
14. Picture of a Crashed F-117A Stealth Fighter  Shot down in Serbia.
15. How "Stealth" is Achieved on the F-117A
16. Method of Edge Waves in the Physical Theory of Diffraction  The paper that started it all.  By Pyotr Ufimtsev.  (8.9M PDF)
17. RadJam - Version 2.0  Computes detection contours for radars in the presence of jammers.  (237k ZIP)
18. Radar Jammer Plans  (124k PDF)
19. RCS Calculations Using the Physical Optics Codes - Version 2.3  RCS equations for Matlab.  (Theory and Operation Paper)
20. Studying Stealth: Air Force Begins Operation of World's Largest Wideband Bi-Static Imaging & Radar Cross Section Test Facility
21. Tesla's Egg of Columbus, Radar Stealth, the Torsion Tensor & the "Philadelphia Experiment"  by K.L. Corum, J.F. Corum, and J.F.X. Daum.  (755k PDF)
22. Now You See It, Now You Don't
23. Ultra Stealth
24. RF Stealth (or Low-Observable) and Counter-RF Stealth Technologies  Implications of counter-RF stealth solutions for Turkish Air Force, by Serdar Cadirci  (2.2M PDF)
25. A Stealth Satellite Sourcebook  by Allen Thomson  (8.3M PDF)
26. Radar Cross Section Measurements (8-12 GHz) of Magnetic and Dielectric Microwave Absorbing Thin Sheets  (90k PDF)
27. Investigation into the Significance of Geometry on the Radar Cross Section of a Ship  by Lt. M. Losier.  (4.6M PDF)
28. Epsilon Radar Cross Section Prediction Software  (Datasheet)  (Galileo Example)
29. Radar Cross Section Reference Sheet  (140k PDF)
30. Radar Signatures and Relations to Radar Cross Section  (376k PDF)
31. Large Lockheed Martin Skunk Works Logo
32. SR-71 Blackbirds Web Site Index
33. Picture of a SU-27 Entering Optical Stealth Mode  That's what it said on the original description.  Fake?
34. Condensation Around a B-2 Stealth Bomber  Often mistaken for secret plasma stealth technology.  (Alternate)
35. The CIA and the U-2 Program, 1954-1974  (8.4M PDF)
36. Stealth Aircraft Soon to be Rendered Useless  Roke Manor Research press release.
37. Electromagnetic Stealth: The Fight Against Radar  by Justin Wilson  (371k PDF)
38. Huygens' Principle
39. Electromagnetic Waves in Cold Plasmas  (1.1M PDF)
40. Electromagnetic Waves in Plasmas  From MIT.  (1.2M PDF)
41. Plasma Stealth Technology Page
42. Force Fields and 'Plasma' Shields Get Closer to Reality
43. Russian Scientists Created Revolutionary Low-Observability Technologies
44. Stealth Technology  Caution: Wikipedia

F-117 Models

45. Tamiya 1:48 F-117 Stealth Fighter  by John Heck
46. Tamiya 1:48 F-117 Stealth Fighter  by Scott C. Schuyler
47. Testors 1:32 F-117 Stealth Fighter  by Warren Zoell
48. Revell 1:48 F-117 Stealth Fighter
49. Academy's 1:48 F-117 Steath Fighter  by Kaan Gok
50. List of F-117 Models

Patents

51. Aircraft of Low-Observability  U.S. Patent 4,019,699  (283k PDF)
52. Stealth Aircraft  U.S. Patent 5,250,950  (452k PDF)
53. All-Wing Aircraft  U.S. Patent 5,250,950  (Northrop)  (452k PDF)
54. Screening for Engines  U.S. Patent 3,487,410  (309k PDF)
55. Absorption Device for Electromagnetic Waves  U.S. Patent 2,771,602  (170k PDF)
56. Arrangement for Weakening, Extinguishing and/or Deflecting Reflected Waves  U.S. Patent 3,307,186  (166k PDF)
57. Radar Absorptive Coating  U.S. Patent 3,599,210  (127k PDF)
58. Ferrite Radar Absorbing Material  U.S. Patent 3,662,387  (52k PDF)
59. Radar Absorbing Material and Process for Making Same  U.S. Patent 5,552,455  (479k PDF)
60. Window that Transmits Light Energy and Selectively Absorbs Microwave Energy  U.S. Patent 5,776,612  (671k PDF)
61. Low-Observable Aircraft Fastener Treatment  U.S. Patent 6,315,485  (108k PDF)
62. Highly Conductive Thermoplastic Elastomer Gap Filler  U.S. Patent 6,780,921  (61k PDF)
63. Infrared Suppressing Two Dimensional Vectorable Single Expansion Ramp Nozzle  U.S. Patent 6,857,600  (133k PDF)
64. Test Pylon Having Low Radar Cross Section  U.S. Patent 4,990,923  (192k PDF)
65. Radar Cross Section Self-Test  U.S. Patent 6,404,383  (93k PDF)
66. Device for Measuring Electromagnetic Radiation Absorption  U.S. Patent 5,923,174  (91k PDF)
67. Measurement of Radar Cross Section Reduction  U.S. Patent 5,428,360  (196k PDF)
68. Object Camouflage Method and Apparatus  U.S. Patent 3,127,608  (Plasma Stealth)  (270k PDF)
69. Method and Means for Reducing Reflections of Electromagnetic Waves  U.S. Patent 4,030,098  (Plasma Stealth)  (205k PDF)
70. Energy Absorption by a Radioisotope Produced Plasma  U.S. Patent 3,713,157  (Plasma Stealth)  (619k PDF)

Anti-Stealth Radar & Countermeasures

1. Roke Manor Research CELLDAR  Counter-stealth, bi-static radar which uses cellular phone signals.  (Overview)
2. Radical and Cheap Anti-Stealth Radar
3. Cellular Phone Radar  (190k PDF)
4. Roke to Adapt Mobile Networks for Radar  by Matthew Clark
5. Lockheed Martin Silent Sentry  (Datasheet)  (Jane's Defense Entry)  (Press Release #1)  (Press Release #2)
6. Rock 'n' Roll Radar  "Silent Sentry" article from Wired.
7. Stealth Threat  "Silent Sentry" article from Popular Science.
8. Peek-a-Boo, I See You  Information on Associative Aperture Synthesis Radar (AASR).  (Wired Info)
9. Scouting For Surveillance  Detection of the B-2 stealth bomber and a brief history on "stealth."
10. Stealth Warplanes: They Can Run, But They Can't Hide
11. ERA Passive Surveillance System VERA-E  Low-band "counter-stealth" radar.
12. Low-Frequency Radars May be Used to Overcome "Stealth" Technology
13. Information About Tamara Anti-Stealth Radar
14. Czech Anti-Stealth Radar may be Operating in Yugoslavia
15. Tamara Passive Sensor  Caution: Wikipedia
16. Stealth's Unmasking Only a Matter of Time
17. Anti-Stealth Technology  by Cyrus Mehta and Ardeshir Mehta  (58k PDF)
18. Long Range Acoustic Device  Useful for the remote jamming of acoustic-based locating sensors.
19. Digital LPI Radar Detector  by Peng Ghee Ong and Kiad Haw Teng  (4.0M PDF)

"The function of a Low Probability of Intercept (LPI) radar is to prevent its interception by an Electronic Support (ES) receiver.  This objective is generally achieved through the use of a radar waveform that is mismatched to those waveforms for which an ES receiver is tuned.  This allows the radar to achieve a processing gain, with respect to the ES receiver, that is equal to the time-bandwidth product of the radar waveform.  This processing gain allows the LPI radar to overcome the range-squared advantage of the ES receiver in conventional situations.  Consequently, a conventional ES receiver can only detect an LPI radar at very short ranges <3 nm).  The focus of this thesis was to develop an ES receiver to detect LPI radar signals with the same sensitivity as conventional pulse signals.  It implements a detector which employs a technique, known as 'deramping,' that forms an adaptive matched filter to the linear FMCW LPI radar signal in order to achieve the processing gain that is equal to the received signal's time-bandwidth product."

General Radar Patents

1. Portable Radar System  U.S. Patent 3,735,402  (464k PDF)
2. Advanced Missile Approach Warning System and Stealth (Low-Observables) Detection Based on Exploitation of Quantum Effects  U.S. Patent 5,850,285  (100k PDF)
3. Transmitter Independent Techniques to Extend the Performance of Passive Coherent Location  European Patent Application 1972962A2  (464k PDF)

General Radar Notes

1. 10 GHz Weather Radar  by Dave Ingram, K4TWJ.  Ham Radio - September 1983.  (337k PDF)
2. The Gunnplexer Cookbook  A microwave primer for radio amateurs and electronics students.  By Robert M. Richardson, W4UCH.  (12.7M PDF)
3. The Radio Amateur's Microwave Communications Handbook  Includes a section on homebrew radar.  By Dave Ingram, K4TWJ.  (17M PDF)
4. Radar Circuit Analysis  United States Dept. of the Air Force manual 52-8.  First published in 1951 and reprinted in 1959.
5. Homebrew Doppler Radar  CQ VHF - November 1998  (1.3M PDF)
6. Doppler Radar in the 10 GHz Amateur Band - Part 1  VHF Communications, Fall 1992, by Jean-Pierre Morel, HB9RKR.  (2.2M PDF)  (Part 2)
7. Aircraft Enhancement  Some insights from bi-static radar theory.  CQ VHF - Fall 2003  (2.0M PDF)
8. Pulse Communications on 2.3 GHz  Pulse radio system using a 2C43 triode.  The Radio Amateur's VHF Manual - ARRL 1965.  (1.2M PDF)
9. Radar System Engineering  Volume 1 of MIT Radiation Laboratory Series.  McGraw-Hill, New York, 1947.  Entire MIT Rad Lab Series)
10. Radar - The Electronic Eye  by Maurice Rubin.  Chemical Pub. Co., 1963.  (6.3M PDF)
11. NEET Module 18 - Radar Principles  Navy Electricity & Electronics Training Series, Module 18  (1998 Version)  (1.5M PDF)
• NEET Module 18 - Radar Principles  2013 Version
• United States Navy Electricity & Electronics Training Series (NEETS) Modules
12. Radar Systems  Navy Electronics Technician, Volume 4  (840k PDF)
13. The Radar Game  Understanding stealth and aircraft survivability, by Rebecca Grant  (3.8M PDF)
14. Radar Identification Procedures  U.S. Army Aviation Course - Subcourse AV0905  (160k PDF)
15. Radar Set  TM 11-487C-1 Military Standardization Handbook
16. Level Radar, Adjust Power Supply and Center Current, and Synchronize Precision Sweep  U.S. Army Aviation Course - Subcourse MM5004
17. Adjustment of PPI, IFF, and Precision Display, and PPI Delay Control  U.S. Army Aviation Course - Subcourse MM5007
18. Radar Basics  (2.8M PDF)
19. Radar Circuits  Includes schematics.  (1.2M PDF)
20. The Radar Pages
21. Building Your Own Amateur Radar  by Steve Bragg, KA9MVA
22. BT/WSR-2002 Amateur Weather Radar Project  by Sean Breheny, KA3YXM, and Anish Trivedi
23. Measuring Gunnplexer Transceiver Frequencies
24. 10 GHz CW Radar
25. Introduction To Radar Technology
26. Doppler Sensor Heads  WiseWave Tech Bulletin No. SRF  (836k PDF)
27. Doppler Weather Radar  Proceedings of the IEEE, Vol. 67, No. 11, November 1979  (2.8M PDF)
28. AN/PPS-15 Ground Surveillance Radar  Operations manual  (1.4M PDF)
29. Interim Development Report for AN/PPS-6 Ultra-Reliable Radar  (4.2M PDF)
30. Technical Manual for the AN/FPS-8 & AN/MPS-11 Radar Set  (36.7M PDF)
31. Technical Manual for AN/MPG-1 & AN/FPG-1 Radars  (20.2M PDF)
32. Potential Application of the Motorola MSR-20 Radar to DOE Site Security  Operates at 9.46 GHz at 1,800 PPS.  From Sandia National Laboratories.  (5.0M PDF)
33. Radar System Characterization and Testing Using the HP 5345A Electronic Counter  HP Application Note 174-14.  (7.6M PDF)
34. U.S. Air Force Radar Test Facilities  (876k PDF)
35. The Fast Fourier Transform and a Wearable Personal Safety Device  A Radar Vision system for detecting crime before it happens.
36. CW Radar Operation - Page 1  (Page 2)
37. Continuous Wave Radar
38. Small Doppler Radar Experiment
39. Doppler Speed Radar  2007 Microchip embedded control design contest entry.  (112k PDF)
40. Using Radar Detectors on 10 GHz  Kent Britain, WA5VJB  (576k PDF)
41. Radar Set AN/PPS-6
42. Hot Wheels Radar Gun
43. Radar Gun Hacked!  By Kipkay.
44. The Leander Project Radar Information
45. Radar World
46. Everything You Always Wanted to Know About UWB Radar: A Practical Introduction to the Ultra Wideband Technology  by Enrico M. Staderini.  (282k PDF)
47. Radio Research Instrument Co., Inc.
48. A Radar History of World War 2  Sample chapter.  (401k PDF)
49. The SCR-584 Radar Tribute Page
50. The SCR-584 Radar  (2.3M PDF)
51. The SCR-268 Radar  Technical overview of the SCR-268 radar from September 1945.
52. Procedure for Making the Itty Bitty Radio Telescope
53. Radar Fundamentals  From KEES Radar Society  (6.2M PDF)
54. Radar Antennas  From KEES Radar Society  (621k PDF)
55. CW & Pulse Radar  From KEES Radar Society  (615k PDF)
56. Excerpt from Radar Principles  by Levanon Nadav  (3.6M PDF)
57. Basic Principles of Radar
58. Principles of Radar  An introductory view, by Chris Allen  (2.4M PDF)
59. Radar Principles - Simplified  by Gordon Hopper, W1MEG.  73 Magazine - June 1964.  (735k PDF)
60. Radar Principles and Systems  (1.4M PDF)
61. The Radar War, 1930-1945  by Gerhard Hepcke  (137k PDF)
62. Target Report: Japanese Airborne Radar  U.S. Navy report from 1945.  (2.0M PDF)
63. Target Report: Japanese Radar Countermeasures and Visual Signal Display Equipment  U.S. Navy report from 1945.  (1.1M PDF)
64. Determination of Radar Chaff Diameter Distribution Function, Fall Speed, and Concentration in the Atmosphere by Use of the NEXRAD Radar  (838k PDF)
65. Interferometric Inverse Synthetic Aperture Radar  by Theodoros G. Kostis  (838k PDF)
66. Simulator-Defined Radar Countermeasure System (Sim-dRCS) Proof of Concept for Deception in Air Defence at Sea  by Theodoros G. Kostis  (1.3M PDF)
67. Ultra-Wideband Monostatic Microwave Radar - Part 1  by Herrn Mohamed El-Hadidy.  (1.8M PDF)
68. Ultra-Wideband Radar Overview - Chapter 1  by James D. Taylor.  (822k PDF)
69. Radar Meteorology Tutorial  by Brian McNoldy.  (877k PDF)
70. A Fiber Optic Based 1550 nm Laser Radar Altimeter with RF Pulse Compression  by Christopher Allen.  (343k PDF)
71. Electronic Warfare and Radar Systems Engineering Handbook  (3.1M PDF)
72. Handbook of Radar Engineering Fundamentals  by V. Ya. Tsylov  (1967, USSR)  (54.1M PDF)
73. Optimum Use of the Weather Radar  (451k PDF)
74. Nonsinusoidal Waves for Radar and Radio Communications  by Henning F. Harmuth.  (3.9M PDF)
75. FPGAs Make a Radar Signal Processor on a Chip a Reality  by Ray Andraka.  (67k PDF)
76. German FuG 202/FuG 220 Lichtenstein Airborne Radars  by Hans H. Jucker.  (2.8M PDF)
77. German Airborne Radar Technology from 1942 to 1945  (1.1M PDF)
78. Allied Report on German Radar  April 1945.
79. Early German Airborne Radar Transmitter Technology  (4.3M PDF)
80. Deflating British Radar Myths of World War 2  (392k PDF)
81. The Invention of the Cavity Magnetron and its Introduction into Canada and the U.S.A.  (1.4M PDF)
82. Homebrew SONAR System
83. HAWK Missle System Radar and CW Illuminator Warning Page
84. Homemade Radar  rec.boats.building USENET post by Brian Whatcott.
85. Ground-Penetrating Radar Methods Used in Surface-Water Discharge Measurements  (928k PDF)
86. Compact Airborne Solid-State 95 GHz FM/CW Radar System  (602k PDF)
87. AN/TPS-43 Tactical Surveillance Radar Pictures  From brewbooks.  (Wikipedia Entry)
88. Cold War-Era Radar Parts and Tubes  Lots of good pictures from zamistro.
89. AN/APG-70 Overview Picture  Used in F-15Es.
90. AN/APG-63 Overview Picture  The AN/APG-63 radar is a highly flexible, all-weather multimode radar.
91. AN/APG-65 Overview Picture  The AN/APG-65 radar is an all-weather multimode sensor that is used for both air-to-air and air-to-surface missions.
92. AN/APG-73 Overview Picture  The AN/APG-73 radar is an all-weather, coherent, multimode, multiwaveform search-and-track sensor that uses programmable digital processors to provide the features and flexibility needed for both air-to-air and air-to-surface missions.
93. ASR-10SS Overview Picture  Raytheon's Primary Surveillance Radar (PSR) with co-mounted Monopulse Secondary Surveillance Radar (MSSR).
94. ASR-23SS Overview Picture  Raytheon's Primary Surveillance Radar (PSR) with co-mounted Monopulse Secondary Surveillance Radar (MSSR).
95. Homemade Passive Radar System (GNU/Radar)
96. Bi-Static Radar
97. Radar Warning Receivers  by Brooke Clarke
98. Radar Information on the F-4 Aircraft
99. A Landing Radio Altimeter for Small Aircraft  by Matjaz Vidmar, S53MV
100. Build Your Own Radar Speed Gun
101. Lightning Radar
102. Parallel Index  Radar plot sheet.  (140k PDF)
• 360° Coverage  Radar plot sheet.  (59k PDF)
• 180° Coverage  Radar plot sheet.  (57k PDF)
• Portable Scale  Radar plot sheet.  (108k PDF)
103. Poor-Man's Radar Gun  Ultrasonic radar, by W1nt3rmut3.
104. Atmel Ultrasonic Ranger
105. Receiver Protection Technology  (573k PDF)
106. Radar System Components and System Design  (214k PDF)
107. Turbulence Measurements in Marine Stratocumulus with Airborne Doppler Radar  (632k PDF)
108. Union Switch & Signal DR-50 Solid State Radar Unit  Installation, operation, and maintenance.  Includes schematic.  (939k PDF)
109. Electronic Counter-Countermeasures Considerations in Radar Systems Acquisition  MIL-HDBK-293  (4.5M PDF)
110. Operating Principles of a Representative Surface Search Radar AN/SPS-10D  Part 1  (1.4M PDF)
• Part 2
• Circuitry of Shipboard Electronics Equipment  NAVPERS 10787  (1962)
111. Operating Principles of a Representative Air Search Radar AN/SPS-29  Part 1  (2.5M PDF)
• Part 2
• Circuitry of Shipboard Electronics Equipment  NAVPERS 10787  (1962)
112. Operating Principles of a Hemispherical Scan Radar AN/SPS-42  Part 1  (2.6M PDF)  (Part 2)
113. Raytheon Pathfinder Model 1200 Radar  Includes schematic.  (4.6M PDF)
114. Raytheon Model R10X and R11 Radar  Includes schematic.  (4.7M PDF)
115. Raytheon Model R20XX and R21XX Radar  Includes schematic.  (9.0M PDF)
116. Raytheon Model R1206XX and R1210XX Radar  Includes schematic.  (1.2M PDF)
117. Apelco LDR-9910 Radar  (2.6M PDF)
118. PIN-Limiter Diodes Effectively Protect Receivers  (333k PDF)
119. Pulse Doppler Radar  (2M PDF)
120. Boy's Toy Radar Gun Scares Stone Lake Speeders
121. Radar Basics: How to Build a 24 GHz FMCW Radar System
122. Building an FMCW Radar From Scratch
123. Hand-building Radar Systems
124. ADS-B on a Real Radar CRT  Last year, I found a 5FP7 CRT on ebay for $45.  My first thought was "Wouldn't it be cool to build a RADAR scope?"
125. Polarization Dependent Radar Return from Rough Surfaces  (4.1M PDF)
126. Basic Mechanisms in Fire Control Computers (1953)  (YouTube(
• Basic Fire Control Mechanisms, OP 1140, 1944
127. Fire Controlman, Volume 2 Fire-Control Radar Fundamentals  NAVEDTRA 14099  (3.6M PDF)
128. Aviation Electricity and Electronics Radar  NAVEDTRA 14339  (3.5M PDF)
129. Microwave Devices and Radar - Volume 1  Naval Postgraduate School lecture notes, by Prof. David Jenn  (4.0M PDF)
130. Microwave Devices and Radar - Volume 4  Naval Postgraduate School lecture notes, by Prof. David Jenn  (4.9M PDF)
131. Radar Quick Reference Guide - v2.0  From the FAA.  (92k PDF)
132. Ultrasonic Movement Detector Schematic  (67k PDF)
133. Short Range Radar Utilizing Standing Wave of Microwave or Millimeter Wave  (370k PDF)
134. UWB Millimeter-Wave FMCW Radar Using Hilbert Transform Methods  (155k PDF)
135. Theory of Radar Discrimination  by E.T. Jaynes  (166k PDF)
136. A Statistical Theory of Target Detection by Pulsed Radar  by J.I. Marcum.  RAND Research Memo. RM-754, December 1, 1947.  (15M PDF)
137. LIFE Magazine Radar Pictures  From Google Image Search
138. Automatic Target Recognition Using Passive Radar
139. Build Your Own Radar  Overview of concepts, resources.
140. T.V. Radar  Detecting objects via television multipath.
141. Manastash Ridge Radar  The Manastash Ridge Radar is a bi-static passive radar system that uses commercial FM broadcasts as a signal source.
142. Using Multi-Static Passive Radar for Real-Time Detection of UFO's in the Near-Earth Environment
143. The Analysis of Sophisticated Direction of Arrival Estimation Methods in Passive Coherent Locators  by Ahmet Ozcetin  (1.9M PDF)
144. Cellphone 'Radar' Tracks Traffic Flow
145. Doppler Shift Motion Detector
146. Remote Heart Rate & Breathing Rate Detection
147. Museum of Air Traffic Control
148. ASR-9 Specific Downloads  (Technical Documentation)
149. Radar Pulse Measurements with a Spectrum Analzyer  Agilent Tech Bulletin.  (58k PDF)
150. Radar Development at Lincoln Laboratory: An Overview of the First Fifty Years  (2.1M PDF)
151. Radar and MIT Lincoln Laboratory: A View from a Distance  (482k PDF)
152. Short Range Personal Radar  Uses infrared.
153. DIY Ultra Wide Band Radar
154. Homemade 6 GHz Radar, V3
155. Simple, Low-Cost FMCW radar  A basic radar system makes radar accessible at low cost for experiments with rangefinding & navigation of autonomous aircraft or spacecraft.  (Video)
156. Homemade Synthetic Aperture Radar  by Henrik Forstén
157. Assembling a Personal Short-Range Radar
158. The Design and Evaluation of a 5.8 GHz Laptop-Based Radar System  by Kevin Chi-Ming Teng  (2013)  (4.9M PDF)
159. Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection  by Hyunmin Jeong and Sangkil Kim  (29M PDF)
160. Evaluation of Two Doppler Radar Systems for Proximity Sensing  by Hailong Liang  (1.4M PDF)
161. Pulsed RF Circuits for Ultra Wideband Communications and Radar Applications  by Ahmed Maher El-Gabaly  (8.3M PDF)  (Source)
162. Pulsed Power Engineering Basic Topologies
163. Circuit and System Design for MM-Wave Radio and Radar Applications  by Ioannis Sarkas  (10.9M PDF)
164. Building an Aircraft Radar System in JavaScript
165. $240 High-Res Rail SAR
166. The Role of Active Millimetre Wave Radar in Defence Surveillance  by Dr. Duncan A. Wynn  (1.2M PDF)
167. Radar Theory for Area/Approach Radar Controllers  by Zulfiqar Ali Mirani  (937k PDF)
168. Radar Engineering Notes  (1M PDF)
169. Military Radar Notes  (679k PDF)
170. Lecture: Radar and the Radar Range Equation  (847k PDF)
171. PATSCAN CMR: Cognitive Microwave Radar
172. Coffee Can Radar  From the students of Greg Charvat.
173. C6M Thyratron Datasheet  Available from Fair Radio.
174. C6J/5C21 Thyratron Datasheet  (64k PDF)
175. 5C22 Thyratron Datasheet  Common radar modulator trigger thyratron.  (265k PDF)
176. 5948 Thyratron Datasheet  (312k PDF)
177. Detailed Pictures of a 2J22 Magnetron
178. Alphatron Radar Magnetrons
179. Strapping of Magnetrons  (651k PDF)
180. Visual Aircraft Recognition  U.S. Army Field Manual No. 44-80.  (3.1M PDF)
181. Dark World of Aircraft Countermeasure Technology
182. Sperry BridgeMaster E-Series Marine Radar  Technical Manual  (Ref: 65800011, Issue #1)  (20.7M PDF)
• Modulator Board - Picture #1
• Modulator Board - Picture #2
• Modulator Board - Picture #3
• Modulator Board - Picture #4
• Modulator Board - Picture #5
• Modulator Board - Picture #6
183. Soviet Air Defense System Technical Documents  S-25, S-75, S-125, S-200, S-225
184. Moscow Air Defense System - PZR S-25 (SA-1 Guild)
185. Analysis of Design Features and Assessment of the Effectiveness of Combat use of Various Modifications of S-125  English translation using Google Translate of this original document in Russian.  (5.1M PDF)
186. The YO-YOU Story: An Electronics Analysis Case History  (707k PDF)
187. Military Standardization Handbook - United States Radar Equipment  MIL-HDBK-162A / TM 11-487C-1  (1965)  (38.8M PDF)
• Higher Frequency Techniques (Excluding Microwaves)  TM 11-667  (October 1952)
188. Radar Signal Generator - TS-155/UP  2.7-2.9 GHz  (1945)
189. JRC JMA-3807 Marine Radar  User Manual  (4.0M PDF)
• Parts List  (1.7M PDF)
• Schematics  (1.4M PDF)
• FCC Test Report  (860k PDF)
190. Airborne Radar Monitoring Systems - Instruction Guide  (1955)
191. Litton Industries Microwave Tubes  (18.1M PDF)
192. Litton Industries Magnetrons  (6M PDF)
193. FMCW Positioning Radar  by Cheng Zhang
194. Manual of Flying - Volume 11 - Radar  The Central Flying School  (1.5M PDF
195. Ammunition Series / Fuzes, Proximity, Electrical - Part One  Resarch and Development of Materiel - Engineering Design Handbook (AMCP 706-211)  (3.4M PDF)
• Ammunition Series / Fuzes, Proximity, Electrical - Part Two  Resarch and Development of Materiel - Engineering Design Handbook (AMCP 706-212)  (33.6M PDF)
• Ammunition Series / Fuzes, Proximity, Electrical - Part Five  Resarch and Development of Materiel - Engineering Design Handbook (AMCP 706-215)  (10.2M PDF)
• Explosives Trains  AMCP 706-179  (10.7M PDF)
• Fuzes  AMCP 706-210  (19.2M PDF)
196. Principles of Modern Radar: Volume 1 - Basic Principles    by William L. Melvin and James A. Scheer
• Principles of Modern Radar: Volume 2 - Advanced Techniques
• Principles of Modern Radar: Volume 3 - Radar Applications
197. Passive Radar  Wikipedia
• Kraken SDR - Passive Radar
198. Bi-Static Radar  Wikipedia
199. Radar  Wikipedia
200. Radar Signal Characteristics  Wikipedia

Other Related GBPPR Projects

1. Furuno Marine Radar Experiments
2. GBPPR Microwave Oven & EMP Experiments  Lots of notes, links, and datasheets.
3. Through-the-Wall Motion Detection Device  Detect human movement using an old automatic door opener.
4. Police Radar Gun Spoofing Experiments  How to make a police radar gun display an alternate reading.
5. Passive Resonant Cavity Technical Surveillance Devices
6. GBPPR "Havana Syndrome" Experiments
7. GPS Delay Spoofing Experiments  Slightly alter the GPS precision timing signals used in a cellular phone-based radar system.
8. GBPPR Base Station Chaos - 800  Jam a cellular phone base station used in anti-stealth radar systems so they have to be shut down.
9. GBPPR Cellular Phone Jammers  Conventional wideband noise jammers.
10. GBPPR Active Denial System  Experimenting with high RF power levels at 2.45 GHz.
11. GBPPR 2.45 GHz Magnetron to Coax Assembly