FR2455289A1 - Filtre eliminateur d'images parasites destine au recepteur d'un radar de poursuite - Google Patents

Filtre eliminateur d'images parasites destine au recepteur d'un radar de poursuite

Info

Publication number
FR2455289A1
FR2455289A1 FR8009238A FR8009238A FR2455289A1 FR 2455289 A1 FR2455289 A1 FR 2455289A1 FR 8009238 A FR8009238 A FR 8009238A FR 8009238 A FR8009238 A FR 8009238A FR 2455289 A1 FR2455289 A1 FR 2455289A1
Authority
FR
France
Prior art keywords
filter
tracking radar
radar receiver
image eliminator
eliminator filter
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
FR8009238A
Other languages
English (en)
Other versions
FR2455289B1 (fr
Inventor
Lars Goran Josefsson
Karl-Erik Ingvar Oderland
Jan-Olov Winnberg
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of FR2455289A1 publication Critical patent/FR2455289A1/fr
Application granted granted Critical
Publication of FR2455289B1 publication Critical patent/FR2455289B1/fr
Granted 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
    • G01S13/06—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
    • G01S13/24—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

L'INVENTION CONCERNE UN FILTRE ELIMINATEUR D'IMAGES PARASITES DESTINE A UN RADAR DE POURSUITE. LES IMPULSIONS DU RADAR SONT EMISES SOUS LA FORME DE SERIES DANS LESQUELLES LA FREQUENCE PORTEUSE VARIE D'UNE IMPULSION A L'AUTRE, CES FREQUENCES PORTEUSES SE REPETANT D'UNE SERIE D'IMPULSIONS SUR L'AUTRE. LE FILTRE F COMPORTE UNE CERTAIN NOMBRE DE LIGNES A RETARD DL1-DLN, PAR EXEMPLE DES REGISTRES A DECALAGE NUMERIQUES, QUI SONT INCREMENTES VERS L'AVANT, EN SYNCHRONISME AVEC UNE FREQUENCE F D'IMPULSIONS PRODUITES PAR UNE HORLOGE CL. L'ENTREE DU FILTRE F ET LA SORTIE DES LIGNES A RETARD DL1-DLN SONT CONNECTEES A UN ELEMENT DIFFERENTIATEUR SK. DOMAINE D'APPLICATION: RADARS DE POURSUITE.
FR8009238A 1979-04-25 1980-04-24 Filtre eliminateur d'images parasites destine au recepteur d'un radar de poursuite Granted FR2455289A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7903654A SE417138B (sv) 1979-04-25 1979-04-25 Mti-filter ingaende i mottagaren i en foljeradar

Publications (2)

Publication Number Publication Date
FR2455289A1 true FR2455289A1 (fr) 1980-11-21
FR2455289B1 FR2455289B1 (fr) 1984-06-29

Family

ID=20337905

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8009238A Granted FR2455289A1 (fr) 1979-04-25 1980-04-24 Filtre eliminateur d'images parasites destine au recepteur d'un radar de poursuite

Country Status (10)

Country Link
US (1) US4385298A (fr)
JP (1) JPH0131154B2 (fr)
CH (1) CH651937A5 (fr)
DE (1) DE3041459A1 (fr)
FR (1) FR2455289A1 (fr)
GB (1) GB2072989B (fr)
IT (1) IT1148797B (fr)
NL (1) NL189625C (fr)
SE (1) SE417138B (fr)
WO (1) WO1980002327A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044285A2 (fr) * 1980-07-16 1982-01-20 SELENIA INDUSTRIE ELETTRONICHE ASSOCIATE S.p.A. Dispositif de filtrage Doppler adapté pour un équipement radar fonctionnant en présence de fouillis et de contre-mesures électroniques

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4495501A (en) * 1982-04-28 1985-01-22 The United States Of America As Represented By The Secretary Of The Air Force Method and means for providing frequency agile operation of MTI _radar
GB2204757B (en) * 1983-08-25 1989-06-01 Marconi Co Ltd Radars
DE4235071C2 (de) * 1992-10-17 1995-09-28 Daimler Benz Aerospace Ag Radargerät mit synthetischer Apertur auf der Basis rotierender Antennen
US6260759B1 (en) 1998-08-11 2001-07-17 Northrop Grumman Corporation Method for tracking a target having substantially constrained movement
WO2004070873A1 (fr) * 2003-02-03 2004-08-19 Telefonaktiebolaget Lm Ericsson (Publ) Procede de commande d'une antenne radar
US7151483B2 (en) * 2004-05-03 2006-12-19 Raytheon Company System and method for concurrent operation of multiple radar or active sonar systems on a common frequency
GB201204792D0 (en) * 2012-03-19 2012-05-02 Qinetiq Ltd Detection techniques

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046547A (en) * 1956-11-23 1962-07-24 Hughes Aircraft Co Two-pulse mti radar system
DE2434732A1 (de) * 1974-07-19 1976-01-29 Westinghouse Electric Corp Impuls-dopplerradarsystem

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786509A (en) * 1962-11-21 1974-01-15 Gen Electric Automatic canceller
US3383686A (en) * 1967-01-30 1968-05-14 Navy Usa Diverse frequency echo detection system with doppler frequency coherence
US4155088A (en) * 1967-02-20 1979-05-15 Westinghouse Electric Corp. Dual frequency transmission apparatus for frequency-agile radar systems utilizing MTI techniques
US3725926A (en) * 1969-03-11 1973-04-03 Us Air Force Frequency diversified radar system
US3883871A (en) * 1973-03-12 1975-05-13 Randolph G Moore Method and modulation system for ambiguity reduction in pulsed radar
US3991417A (en) * 1975-05-01 1976-11-09 International Telephone And Telegraph Corporation MTI canceller utilizing fiber optic delay medium and frequency reiteration
US4117538A (en) * 1977-05-04 1978-09-26 Raytheon Company Radar system with specialized weighting
GB1604645A (en) * 1977-08-02 1981-12-09 Marconi Co Ltd Radar systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046547A (en) * 1956-11-23 1962-07-24 Hughes Aircraft Co Two-pulse mti radar system
DE2434732A1 (de) * 1974-07-19 1976-01-29 Westinghouse Electric Corp Impuls-dopplerradarsystem

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044285A2 (fr) * 1980-07-16 1982-01-20 SELENIA INDUSTRIE ELETTRONICHE ASSOCIATE S.p.A. Dispositif de filtrage Doppler adapté pour un équipement radar fonctionnant en présence de fouillis et de contre-mesures électroniques
EP0044285A3 (en) * 1980-07-16 1982-02-03 Selenia Industrie Elettroniche Associate S.P.A. Adaptive doppler filtering device for external clutter and ecm situations in radar equipment

Also Published As

Publication number Publication date
US4385298A (en) 1983-05-24
FR2455289B1 (fr) 1984-06-29
DE3041459C2 (fr) 1989-09-07
GB2072989A (en) 1981-10-07
NL189625B (nl) 1993-01-04
NL8020159A (nl) 1981-08-03
CH651937A5 (de) 1985-10-15
JPH0131154B2 (fr) 1989-06-23
NL189625C (nl) 1993-06-01
SE7903654L (sv) 1980-10-26
SE417138B (sv) 1981-02-23
DE3041459A1 (en) 1982-02-18
JPS56500427A (fr) 1981-04-02
IT1148797B (it) 1986-12-03
WO1980002327A1 (fr) 1980-10-30
IT8021627A0 (it) 1980-04-24
GB2072989B (en) 1983-06-02

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