FR2302535A2 - Radar doppler a elimination d'images parasites - Google Patents

Radar doppler a elimination d'images parasites

Info

Publication number
FR2302535A2
FR2302535A2 FR7605206A FR7605206A FR2302535A2 FR 2302535 A2 FR2302535 A2 FR 2302535A2 FR 7605206 A FR7605206 A FR 7605206A FR 7605206 A FR7605206 A FR 7605206A FR 2302535 A2 FR2302535 A2 FR 2302535A2
Authority
FR
France
Prior art keywords
radar system
signals
succession
range increments
short duration
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.)
Pending
Application number
FR7605206A
Other languages
English (en)
Inventor
Shirly La Var Howard
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from US05/552,926 external-priority patent/US3972041A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2302535A2 publication Critical patent/FR2302535A2/fr
Pending 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
    • G01S13/5244—Adaptive clutter cancellation
    • 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
    • G01S13/5242—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 with means for platform motion or scan motion compensation, e.g. airborne MTI
    • 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)
FR7605206A 1975-02-25 1976-02-25 Radar doppler a elimination d'images parasites Pending FR2302535A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/552,926 US3972041A (en) 1971-03-17 1975-02-25 Adaptive clutter velocity cancellation system for pulsed digital MTI system

Publications (1)

Publication Number Publication Date
FR2302535A2 true FR2302535A2 (fr) 1976-09-24

Family

ID=24207386

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7605206A Pending FR2302535A2 (fr) 1975-02-25 1976-02-25 Radar doppler a elimination d'images parasites

Country Status (1)

Country Link
FR (1) FR2302535A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507783A1 (fr) * 1981-06-16 1982-12-17 Thomson Csf Dispositif de calcul de l'argument d'un signal complexe defini par ses deux composantes en quadrature et application a un signal radar
FR2548385A1 (fr) * 1983-06-16 1985-01-04 Mitsubishi Electric Corp Radar comportant un dispositif eliminateur d'echos fixes

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2130388A1 (fr) * 1971-03-17 1972-11-03 Int Standard Electric Corp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2130388A1 (fr) * 1971-03-17 1972-11-03 Int Standard Electric Corp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507783A1 (fr) * 1981-06-16 1982-12-17 Thomson Csf Dispositif de calcul de l'argument d'un signal complexe defini par ses deux composantes en quadrature et application a un signal radar
EP0067768A1 (fr) * 1981-06-16 1982-12-22 Thomson-Csf Dispositif de calcul de l'argument d'un signal complexe défini par ses deux composantes en quadrature, et application à un signal radar
FR2548385A1 (fr) * 1983-06-16 1985-01-04 Mitsubishi Electric Corp Radar comportant un dispositif eliminateur d'echos fixes

Similar Documents

Publication Publication Date Title
JPS5318138A (en) Collision avoidance system
EP0063803A3 (en) Pulse doppler radar receiver with a circuit for regenerating the undisturbed signal form
NO146688C (no) Anlegg for aa skille ut sanne maalekkosignaler i en pulsdopplerradarmottager.
AU460015B2 (en) Doppler radar system
NO146689C (no) Enkeltkanalpulsdopplerradarmottaker.
CA1000388A (en) Multiple time around signal suppressor for pulse radar
CA932444A (en) Digital sonar doppler navigator
FR2302535A2 (fr) Radar doppler a elimination d'images parasites
ES400831A1 (es) Sistema adaptable de cancelacion de velocidad de perturba- cion para sistemas pulsados digitales mti.
CA1032612A (fr) Recepteur d'impulsions transmises par modulation de frequence
CA990856A (en) System for the transmission of signals by pulse code modulation
BE842561A (fr) Systeme pour la transmission de signaux par modulation en delta de signaux comprimes
NL168950B (nl) Pulsdopplerradarapparaat.
NL7410811A (nl) Werkwijze en inrichting voor het elimineren van echosignalen, afkomstig van vaste of langzaam bewegende doelen, onder de echosignalen ont- vangen door een ontvanger met een draaiende antenne.
CA923564A (en) Receiver for the reception of modulated pulses lying in a given signal band
JPS52150994A (en) 3-dimensional radar apparatus
FR2312883A1 (fr) Attenuateur numerique, notamment pour signaux comprimes en modulation par impulsions codees
JPS53128293A (en) Signal processing system of pulse doppler radar
NL7608808A (nl) Puls-doppler-radarontvanger.
GB1440394A (en) Pulse doppler radar systems
CA994438A (en) Line system for transmitting pulse signals
IT971260B (it) Ricevitore radar a treni di impulsi doppler provvisto di un filtro per oggetti in movimento
JPS5690275A (en) Monopulse radar device
NL148162B (nl) Puls-doppler-radarontvanger.
CA896104A (en) Receiver for the reception of information pulse signals located in a prescribed transmission band