FR2389905B1 - - Google Patents
Info
- Publication number
- FR2389905B1 FR2389905B1 FR7812774A FR7812774A FR2389905B1 FR 2389905 B1 FR2389905 B1 FR 2389905B1 FR 7812774 A FR7812774 A FR 7812774A FR 7812774 A FR7812774 A FR 7812774A FR 2389905 B1 FR2389905 B1 FR 2389905B1
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
- G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
- G01S13/5246—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi post processors for coherent MTI discriminators, e.g. residue cancellers, CFAR after Doppler filters
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
- G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
- G01S13/53—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on a single spectral line and associated with one or more range gates with a phase detector or a frequency mixer to extract the Doppler information, e.g. pulse Doppler radar
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB18359/77A GB1598437A (en) | 1977-05-02 | 1977-05-02 | Radar signal processors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2389905A1 FR2389905A1 (enExample) | 1978-12-01 |
| FR2389905B1 true FR2389905B1 (enExample) | 1984-02-03 |
Family
ID=10111117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7812774A Expired FR2389905B1 (enExample) | 1977-05-02 | 1978-04-28 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4225864A (enExample) |
| FR (1) | FR2389905B1 (enExample) |
| GB (1) | GB1598437A (enExample) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8101111A (nl) * | 1981-03-09 | 1982-10-01 | Hollandse Signaalapparaten Bv | Impulsradarapparaat. |
| US4760398A (en) * | 1981-09-30 | 1988-07-26 | The Boeing Company | Methods and apparatus for determining the differential sideband power of radar signals |
| FR2517069A1 (fr) * | 1981-11-24 | 1983-05-27 | Lmt Radio Professionelle | Radar doppler de surveillance terrestre |
| US5418536A (en) * | 1981-12-21 | 1995-05-23 | Westinghouse Electric Corporation | Bandwidth and amplitude insensitive frequency discriminator |
| GB2126039A (en) * | 1982-08-20 | 1984-03-14 | Hans Spies | MTI Radar or lidar |
| JPS59103169A (ja) * | 1982-12-03 | 1984-06-14 | Matsushita Electric Ind Co Ltd | デジタル信号処理装置 |
| US5339082A (en) * | 1983-09-29 | 1994-08-16 | The Boeing Company | FM/CW sensor processor for target recognition |
| FR2629600B1 (fr) * | 1984-08-24 | 1991-10-11 | Thomson Csf | Dispositif de reception radar et radar comportant un tel dispositif |
| US4780718A (en) * | 1985-06-17 | 1988-10-25 | Hughes Aircraft Company | Sar image encoding for data compression |
| US5563601A (en) * | 1985-08-16 | 1996-10-08 | Northrop Grumman Corporation. | Two-port synthetic aperature radar system for radar detection of targets |
| DE3722713B3 (de) | 1987-07-09 | 2019-08-14 | Siemens Aktiengesellschaft | Pulsdoppler-Radarverfahren |
| DE3740141A1 (de) * | 1987-11-26 | 1989-06-08 | Siemens Ag | Radarverfahren zur klassifizierung von hubschraubern |
| US4965761A (en) * | 1988-06-03 | 1990-10-23 | General Dynamics Corporation, Pomona Div. | Fast discrete fourier transform apparatus and method |
| US5218360A (en) * | 1991-05-23 | 1993-06-08 | Trw Inc. | Millimeter-wave aircraft landing and taxing system |
| GB9208090D0 (en) * | 1992-04-13 | 1992-05-27 | Marconi Gec Ltd | Vehicle detection |
| US5596553A (en) * | 1995-11-21 | 1997-01-21 | Kellogg; Robert L. | Digital sundial |
| EP2614384B1 (en) * | 2010-09-08 | 2016-02-10 | BAE Systems PLC | Radar system and methods of controlling a radar system and the provision of a range-doppler target image signature |
| FR2977679B1 (fr) * | 2011-07-06 | 2013-08-16 | Rockwell Collins France | Procede et dispositif de detection d'une cible masquee par des reflecteurs de forte energie |
| EP4513235A1 (en) * | 2023-08-21 | 2025-02-26 | Infineon Technologies AG | Apparatus, radar system, and method for detecting a target motion |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665443A (en) * | 1970-09-03 | 1972-05-23 | Aerospace Res | Ultrasonic intrusion alarm |
| US3965428A (en) * | 1971-01-04 | 1976-06-22 | The United States Of America As Represented By The Secretary Of The Air Force | Spectrum-shape discriminating on/off target indicator |
| US4083049A (en) * | 1971-07-28 | 1978-04-04 | Westinghouse Electric Corporation | Moving target radar |
| US3735400A (en) * | 1971-11-23 | 1973-05-22 | Us Air Force | Amti radar clutter cancelling method and apparatus |
| US3775768A (en) * | 1971-12-06 | 1973-11-27 | Westinghouse Electric Corp | Adaptive mti clutter filter |
| US4168500A (en) * | 1972-03-10 | 1979-09-18 | The United States Of America As Represented By The Secretary Of The Air Force | Method and system for moving target elimination and indication using smoothing filters |
| US4086590A (en) * | 1975-03-27 | 1978-04-25 | The United States Of America As Represented By The Secretary Of The Air Force | Method and apparatus for improving the slowly moving target detection capability of an AMTI synthetic aperture radar |
| FR2306453A1 (fr) * | 1975-04-03 | 1976-10-29 | Nippon Electric Co | Radar d'indication de cibles mobiles |
| US4119966A (en) * | 1977-07-14 | 1978-10-10 | Motorola Inc. | Clutter discriminating apparatus for use with pulsed doppler radar systems and the like |
-
1977
- 1977-05-02 GB GB18359/77A patent/GB1598437A/en not_active Expired
-
1978
- 1978-04-28 FR FR7812774A patent/FR2389905B1/fr not_active Expired
-
1979
- 1979-03-20 US US06/022,336 patent/US4225864A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1598437A (en) | 1981-09-23 |
| US4225864A (en) | 1980-09-30 |
| FR2389905A1 (enExample) | 1978-12-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse |