FR2446565B3 - - Google Patents
Info
- Publication number
- FR2446565B3 FR2446565B3 FR7931857A FR7931857A FR2446565B3 FR 2446565 B3 FR2446565 B3 FR 2446565B3 FR 7931857 A FR7931857 A FR 7931857A FR 7931857 A FR7931857 A FR 7931857A FR 2446565 B3 FR2446565 B3 FR 2446565B3
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/767—Responders; Transponders
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Radio Transmission System (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/002,821 US4218680A (en) | 1979-01-12 | 1979-01-12 | Coded coherent transponder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2446565A1 FR2446565A1 (fr) | 1980-08-08 |
| FR2446565B3 true FR2446565B3 (US20100170793A1-20100708-C00006.png) | 1981-10-02 |
Family
ID=21702673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7931857A Granted FR2446565A1 (fr) | 1979-01-12 | 1979-12-27 | Transpondeur coherent code |
Country Status (5)
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3248879A1 (de) * | 1982-06-18 | 1984-04-12 | Dornier System Gmbh, 7990 Friedrichshafen | Verfahren und vorrichtung zur erzeugung kuenstlicher zielmarken in der abbildung eines radars mit synthetischer apertur (sar) |
| DE3315499A1 (de) * | 1983-04-28 | 1987-02-05 | Dornier System Gmbh | Verfahren und vorrichtung zur erzeugung eines kuenstlichen rueckstreuzielmusters |
| US4885591A (en) * | 1983-09-28 | 1989-12-05 | Mobil Oil Corp. | Method and apparatus for monitoring ice masses |
| US4640552A (en) * | 1983-09-28 | 1987-02-03 | Mobil Oil Corporation | Method and apparatus for splitting ice masses |
| JPH0756511B2 (ja) * | 1984-01-31 | 1995-06-14 | 三菱電機株式会社 | レ−ダ応答装置 |
| US4622557A (en) * | 1984-10-31 | 1986-11-11 | The United States Of America As Represented By The Secretary Of The Air Force | Transdigitizer for relaying signals from global positioning system (GPS) satellites |
| US4737788A (en) * | 1985-04-04 | 1988-04-12 | Motorola, Inc. | Helicopter obstacle detector |
| DK272285A (da) * | 1985-06-17 | 1986-12-18 | Forsvarets Forsknings | Kohaerent fasereference anbragt paa radarmaal til opnaaelse af forbedret syntetisk apertur afbildning og oplaesning af bevaegelsesdetaljer. |
| US4899158A (en) * | 1987-09-26 | 1990-02-06 | Matsushita Electric Works, Ltd. | Moving object discriminating system |
| US5144314A (en) * | 1987-10-23 | 1992-09-01 | Allen-Bradley Company, Inc. | Programmable object identification transponder system |
| US4888591A (en) * | 1988-10-06 | 1989-12-19 | Amtech Technology Corporation | Signal discrimination system |
| GB2238210B (en) * | 1989-11-14 | 1994-03-16 | Racal Mesl Ltd | Electronic identification tag |
| GB2239571B (en) * | 1989-12-29 | 1994-08-03 | Schlumberger Ind Ltd | Transponder |
| EP0577687A1 (en) * | 1991-03-28 | 1994-01-12 | Magellan Corporation (Australia) Pty. Ltd. | Identification apparatus and method |
| US5164734A (en) * | 1991-10-07 | 1992-11-17 | Duane G. Fredericks | Radar target with delayed reply means |
| GB2261344A (en) * | 1991-11-08 | 1993-05-12 | Richard Morris Trim | Radar transponder |
| US6041088A (en) * | 1996-10-23 | 2000-03-21 | Sicom, Inc. | Rapid synchronization for communication systems |
| US6060815A (en) * | 1997-08-18 | 2000-05-09 | X-Cyte, Inc. | Frequency mixing passive transponder |
| GB9808762D0 (en) | 1998-04-25 | 1998-06-24 | Marconi Gec Ltd | Modulated reflector circuit |
| US6340883B1 (en) * | 1998-09-03 | 2002-01-22 | Sony/Tektronik Corporation | Wide band IQ splitting apparatus and calibration method therefor with balanced amplitude and phase between I and Q |
| DE10032822A1 (de) * | 2000-07-06 | 2002-01-24 | Siemens Ag | Vorrichtung zur Erzeugung eines Oszillatorsignals |
| DE10155251A1 (de) * | 2001-11-09 | 2003-06-18 | Siemens Ag | Transpondersystem und Verfahren zur Entfernungsmessung |
| US7042388B2 (en) * | 2003-07-15 | 2006-05-09 | Farrokh Mohamadi | Beacon-on-demand radar transponder |
| US7573381B2 (en) | 2006-02-21 | 2009-08-11 | Karr Lawrence J | Reverse locator |
| US7592918B2 (en) | 2006-02-21 | 2009-09-22 | Karr Lawrence J | Electronic fence mode alert system and method |
| US7791470B2 (en) * | 2006-02-21 | 2010-09-07 | Roundtrip Llc | Spin around direction and distance locator |
| US7917155B2 (en) | 2006-10-27 | 2011-03-29 | Roundtrip Llc | Location of cooperative tags with personal electronic device |
| DE102011056432A1 (de) * | 2011-12-14 | 2013-06-20 | Jenoptik Robot Gmbh | Verfahren und Vorrichtung zur Erfassung eines Objektes in einem Radarfeld |
| CN107271967B (zh) * | 2016-11-26 | 2020-03-31 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | 脉冲相参应答机同频干扰处理系统 |
| US10705199B2 (en) * | 2017-11-30 | 2020-07-07 | Urban Canyon Flight | Aviation transponder |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE540578A (US20100170793A1-20100708-C00006.png) * | 1953-12-02 | |||
| US3654554A (en) * | 1963-01-29 | 1972-04-04 | Sperry Rand Corp | Secure pulse compression coding system |
| FR2108814B1 (US20100170793A1-20100708-C00006.png) * | 1970-10-08 | 1976-09-03 | Labo Cent Telecommunicat | |
| US4075632A (en) * | 1974-08-27 | 1978-02-21 | The United States Of America As Represented By The United States Department Of Energy | Interrogation, and detection system |
| US3964024A (en) * | 1974-11-15 | 1976-06-15 | Westinghouse Air Brake Company | Transponder for an automatic vehicle identification system |
| US3996587A (en) * | 1975-10-28 | 1976-12-07 | Rca Corporation | Semipassive responder utilizing a low voltage, low power drain reflective varactor phase modulator |
| US4114151A (en) * | 1976-09-14 | 1978-09-12 | Alfa-Laval Company Limited | Passive transponder apparatus for use in an interrogator-responder system |
-
1979
- 1979-01-12 US US06/002,821 patent/US4218680A/en not_active Expired - Lifetime
- 1979-11-21 GB GB7910281A patent/GB2046059B/en not_active Expired
- 1979-12-27 FR FR7931857A patent/FR2446565A1/fr active Granted
-
1980
- 1980-01-11 DE DE19803000876 patent/DE3000876A1/de not_active Withdrawn
- 1980-01-11 JP JP199480A patent/JPS5596474A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4218680A (en) | 1980-08-19 |
| FR2446565A1 (fr) | 1980-08-08 |
| DE3000876A1 (de) | 1980-07-24 |
| GB2046059B (en) | 1983-04-20 |
| GB2046059A (en) | 1980-11-05 |
| JPS5596474A (en) | 1980-07-22 |
