DE3779894D1 - Ueber-reichweite-stoerecho-unterdrueckungsschaltung. - Google Patents

Ueber-reichweite-stoerecho-unterdrueckungsschaltung.

Info

Publication number
DE3779894D1
DE3779894D1 DE8787904787T DE3779894T DE3779894D1 DE 3779894 D1 DE3779894 D1 DE 3779894D1 DE 8787904787 T DE8787904787 T DE 8787904787T DE 3779894 T DE3779894 T DE 3779894T DE 3779894 D1 DE3779894 D1 DE 3779894D1
Authority
DE
Germany
Prior art keywords
cross
interference cancellation
cancellation circuit
range interference
range
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.)
Expired - Fee Related
Application number
DE8787904787T
Other languages
English (en)
Other versions
DE3779894T2 (de
Inventor
L O'brien
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of DE3779894D1 publication Critical patent/DE3779894D1/de
Application granted granted Critical
Publication of DE3779894T2 publication Critical patent/DE3779894T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/20—Systems for measuring distance only using transmission of interrupted, pulse modulated waves whereby multiple time-around echoes are used or eliminated
    • 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
    • G01S13/526—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 the whole spectrum without loss of range information, e.g. using delay line cancellers or comb filters

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)
DE8787904787T 1986-07-07 1987-07-06 Ueber-reichweite-stoerecho-unterdrueckungsschaltung. Expired - Fee Related DE3779894T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/882,582 US4688044A (en) 1986-07-07 1986-07-07 Multiple range interval clutter cancellation circuit
PCT/US1987/001653 WO1988000355A1 (en) 1986-07-07 1987-07-06 Multiple range interval clutter cancellation circuit

Publications (2)

Publication Number Publication Date
DE3779894D1 true DE3779894D1 (de) 1992-07-23
DE3779894T2 DE3779894T2 (de) 1992-12-24

Family

ID=25380910

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787904787T Expired - Fee Related DE3779894T2 (de) 1986-07-07 1987-07-06 Ueber-reichweite-stoerecho-unterdrueckungsschaltung.

Country Status (7)

Country Link
US (1) US4688044A (de)
EP (1) EP0273970B1 (de)
JP (1) JPH01500774A (de)
DE (1) DE3779894T2 (de)
IL (1) IL83042A (de)
NO (1) NO172821C (de)
WO (1) WO1988000355A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800387A (en) * 1984-02-07 1989-01-24 Logimetrics, Inc. Boresight chamber assembly apparatus
JPS60169782A (ja) * 1984-02-14 1985-09-03 Nec Corp 移動目標表示装置
US4890113A (en) * 1987-12-09 1989-12-26 Westinghouse Electric Corp. Second time around clutter cancellation system
NL8800002A (nl) * 1988-01-04 1988-04-05 Hollandse Signaalapparaten Bv Moving target indicatie-eenheid.
FR2662265A1 (fr) * 1990-05-18 1991-11-22 Philips Electronique Lab Dispositif eliminateur d'echos fixes pour echographe ultrasonore.
US5150426A (en) * 1990-11-20 1992-09-22 Hughes Aircraft Company Moving target detection method using two-frame subtraction and a two quadrant multiplier
FR2712094B1 (fr) * 1993-11-02 1995-12-01 Thomson Csf Procédé de détermination du rang d'ambiguïté en distance d'échos radar.
FR2719669B1 (fr) * 1994-05-03 1996-06-07 Thomson Csf Procédé et dispositif d'élimination des échos fixes en fréquence intermédiaire dans un radar à impulsions cohérentes.
JPH08228409A (ja) * 1995-02-22 1996-09-03 Kyosan Electric Mfg Co Ltd 現示決定処理装置
US6867732B1 (en) * 2004-08-10 2005-03-15 Chung Shan Institute Of Science And Technology, Armanents Bureau, M.N.D. Embedded multi-functional preprocessing input data buffer in radar system
US7095358B2 (en) * 2004-11-23 2006-08-22 Raytheon Company Technique for cancellation of elevated clutter for the detection of fixed and ground moving targets under trees
WO2010103309A1 (en) 2009-03-11 2010-09-16 Bae Systems Plc Sensor for determining velocity
US8471761B1 (en) * 2010-04-23 2013-06-25 Akela, Inc. Wideband radar nulling system
US9864044B2 (en) * 2014-06-25 2018-01-09 Raytheon Company Methods and systems for improving signal to phase noise in radars
EP3267224B1 (de) * 2016-07-06 2019-02-27 Riegl Laser Measurement Systems GmbH Verfahren zur entfernungsmessung
CN108828546B (zh) * 2018-05-24 2021-03-26 西安空间无线电技术研究所 一种天基多通道动目标雷达接收处理系统及方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB892282A (en) * 1959-03-26 1962-03-21 Marconi Wireless Telegraph Co Improvements in or relating to pulsed radar systems
US3109171A (en) * 1961-02-06 1963-10-29 George L Henry Three-pulse canceller for coherent mti systems
US4042924A (en) * 1970-02-25 1977-08-16 Hughes Aircraft Company MTI clutter tracking and cancelling system
US3828348A (en) * 1971-10-21 1974-08-06 Hughes Aircraft Co System for minimizing multiple time around echos in a coherent-on-receive-doppler radar
US3879729A (en) * 1973-07-23 1975-04-22 Gen Electric Moving target indicator with minimum clutter interference
US4035799A (en) * 1975-11-04 1977-07-12 The United States Of America As Represented By The Secretary Of The Navy Digital mean clutter doppler compensation system
US4003052A (en) * 1975-12-15 1977-01-11 United Technologies Corporation Digital prefilter for clutter attenuation in MTI radars
US4137532A (en) * 1977-04-29 1979-01-30 Westinghouse Electric Corp. VIP doppler filter bank signal processor for pulse doppler radar
US4086592A (en) * 1977-07-22 1978-04-25 The United States Of America As Represented By The Secretary Of The Navy Digital sidelobe canceller
US4119962A (en) * 1977-11-23 1978-10-10 The United States Of America As Represented By The Secretary Of The Navy Multiple memory adaptive MTI
US4318099A (en) * 1980-02-21 1982-03-02 The United States Of America As Represented By The Secretary Of The Navy Clutter filter using a minimum number of radar pulses
IT1146164B (it) * 1980-07-16 1986-11-12 Selenia Ind Elettroniche Dispositivo di filtraggio doppler adattivo alla situazione di clutter ed ecm esterna per impianti radar
US4489320A (en) * 1981-08-07 1984-12-18 The United States Of America As Represented By The Secretary Of The Navy Interference suppressor for radar MTI
US4450448A (en) * 1981-08-28 1984-05-22 Grumman Aerospace Corporation Apparatus and method for improving antenna sidelobe cancellation
US4390881A (en) * 1982-06-09 1983-06-28 The United States Of America As Respresented By The Secretary Of The Navy Real-data digital-real-weight canceler
IT1197641B (it) * 1983-05-04 1988-12-06 Selenia Ind Elettroniche Dispositivo per l'identificazione e la soppressione di echi indesiderati di seconda traccia in sistemi radar

Also Published As

Publication number Publication date
NO172821C (no) 1993-09-08
JPH0529875B2 (de) 1993-05-06
DE3779894T2 (de) 1992-12-24
IL83042A (en) 1991-06-10
NO880981L (no) 1988-03-04
NO880981D0 (no) 1988-03-04
US4688044A (en) 1987-08-18
JPH01500774A (ja) 1989-03-16
EP0273970A1 (de) 1988-07-13
WO1988000355A1 (en) 1988-01-14
NO172821B (no) 1993-06-01
EP0273970B1 (de) 1992-06-17

Similar Documents

Publication Publication Date Title
NO823856L (no) Ekkokanselleringskrets.
DE3770461D1 (de) Elektronisches neigungsmessgeraet.
DE3776209D1 (de) Rauschunterdrueckungsschaltung.
FI853410L (fi) Kopplingsanordning.
DE3576205D1 (de) Interferenz-refraktometer.
NO874403D0 (no) Lokk.
DE3788797D1 (de) System zur Auslöschung von Interferenzen.
DE3779894T2 (de) Ueber-reichweite-stoerecho-unterdrueckungsschaltung.
NO873687D0 (no) Dekningsbelegg.
NO852920L (no) Spenneanordning.
DE3774924D1 (de) Ueberzugsmasse.
DE3766515D1 (de) Hockintegrierte halbleiterschaltung mit stoerunterdrueckungsschaltung.
FI852164A0 (fi) Kopplingsanordning.
DE3782004T2 (de) Beschichtungsmasse.
DE3853111T2 (de) Störschutzanordnung.
DE3778291D1 (de) Frequenzgangkompensationsschaltung.
DE68915324D1 (de) Funkentstörung.
ES2023895B3 (es) Compuestos de revestimiento.
NO164498C (no) Spenneanordning.
NO166102C (no) Ettergivende torsjonshylse.
DE3676835D1 (de) Kompensationsschaltung.
DE3772583D1 (de) Kastenfoermiges bauelement.
DE3777353D1 (de) Deckel.
DE3782392T2 (de) Bauelement.
FI882201A0 (fi) Elektromagnetisk oskillationsmotor.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: RAYTHEON CO. (N.D.GES.D. STAATES DELAWARE), LEXING

8339 Ceased/non-payment of the annual fee