FR2389905A1 - - Google Patents

Info

Publication number
FR2389905A1
FR2389905A1 FR7812774A FR7812774A FR2389905A1 FR 2389905 A1 FR2389905 A1 FR 2389905A1 FR 7812774 A FR7812774 A FR 7812774A FR 7812774 A FR7812774 A FR 7812774A FR 2389905 A1 FR2389905 A1 FR 2389905A1
Authority
FR
France
Prior art keywords
radars
relates
ratio
bands
declared
Prior art date
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.)
Granted
Application number
FR7812774A
Other languages
English (en)
French (fr)
Other versions
FR2389905B1 (enExample
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Handel und Investments AG
Original Assignee
Plessey Handel und Investments AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Plessey Handel und Investments AG filed Critical Plessey Handel und Investments AG
Publication of FR2389905A1 publication Critical patent/FR2389905A1/fr
Application granted granted Critical
Publication of FR2389905B1 publication Critical patent/FR2389905B1/fr
Expired legal-status Critical Current

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)
FR7812774A 1977-05-02 1978-04-28 Expired FR2389905B1 (enExample)

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 true FR2389905A1 (enExample) 1978-12-01
FR2389905B1 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)

* Cited by examiner, † Cited by third party
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665443A (en) * 1970-09-03 1972-05-23 Aerospace Res Ultrasonic intrusion alarm
US4083049A (en) * 1971-07-28 1978-04-04 Westinghouse Electric Corporation Moving target radar
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
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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

Also Published As

Publication number Publication date
GB1598437A (en) 1981-09-23
US4225864A (en) 1980-09-30
FR2389905B1 (enExample) 1984-02-03

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse