DK142077A - Radarmodtager med onordning til fjernelse af uonskede refleksioner - Google Patents

Radarmodtager med onordning til fjernelse af uonskede refleksioner

Info

Publication number
DK142077A
DK142077A DK142077A DK142077A DK142077A DK 142077 A DK142077 A DK 142077A DK 142077 A DK142077 A DK 142077A DK 142077 A DK142077 A DK 142077A DK 142077 A DK142077 A DK 142077A
Authority
DK
Denmark
Prior art keywords
disorder
remove unwanted
radar receiver
unwanted reflections
reflections
Prior art date
Application number
DK142077A
Other languages
English (en)
Other versions
DK149372B (da
DK149372C (da
Inventor
W L Weigle
O M Cromer
E L Fogle
L C Schafer
Original Assignee
Westinghouse 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
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of DK142077A publication Critical patent/DK142077A/da
Publication of DK149372B publication Critical patent/DK149372B/da
Application granted granted Critical
Publication of DK149372C publication Critical patent/DK149372C/da

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
    • G01S13/526—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
    • G01S13/5265—IF cancellers, e.g. TACCAR systems
    • 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
    • G01S13/5246—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

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)
DK142077A 1976-04-01 1977-03-31 Dopplerradarmodtager DK149372C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/672,823 US4104631A (en) 1976-04-01 1976-04-01 Method and system for clutter blanking in a radar target processor
US67282376 1976-04-01

Publications (3)

Publication Number Publication Date
DK142077A true DK142077A (da) 1977-10-02
DK149372B DK149372B (da) 1986-05-20
DK149372C DK149372C (da) 1986-11-03

Family

ID=24700166

Family Applications (1)

Application Number Title Priority Date Filing Date
DK142077A DK149372C (da) 1976-04-01 1977-03-31 Dopplerradarmodtager

Country Status (5)

Country Link
US (1) US4104631A (da)
BE (1) BE852863A (da)
DK (1) DK149372C (da)
NL (1) NL7703028A (da)
NO (1) NO146690C (da)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1546061A (en) * 1978-01-03 1979-05-16 Lapy V Automatic shipboard collision avoidance system
US4268828A (en) * 1979-09-19 1981-05-19 Ford Aerospace & Communications Corporation Swept frequency radar system employing phaseless averaging
NL8101111A (nl) * 1981-03-09 1982-10-01 Hollandse Signaalapparaten Bv Impulsradarapparaat.
US4559537A (en) * 1982-12-10 1985-12-17 Raytheon Company Method of tracking target in presence of clutter
US4940988A (en) * 1988-11-02 1990-07-10 Westinghouse Electric Corp. Two parameter clutter map
US5061934A (en) * 1990-11-09 1991-10-29 The United States Of America As Represented By The Secretary Of The Air Force Hybrid clutter cancellation method and system for improved radar performance
DE4229951A1 (de) * 1992-09-08 1994-03-10 Deutsche Aerospace Verfahren zur Kompensation eines von einer bewegten Radarantenne erzeugten Signalanteils
US5351056A (en) * 1993-06-21 1994-09-27 International Business Machines Corp. Target tracking in clutter degraded scenes using central level stereo processing
US5563604A (en) * 1995-02-08 1996-10-08 Alliedsignal Inc. Weather radar using spectral gaussian envelope discrimination for clutter rejection
US6018311A (en) * 1998-07-14 2000-01-25 Raytheon Company Noncoherent gain enhancement technique for improved detection-estimation performance
US6049302A (en) * 1999-05-04 2000-04-11 Boeing North American Pulsed doppler radar system with small intermediate frequency filters
US6466958B1 (en) * 2000-09-12 2002-10-15 Interstate Electronics Corporation, A Division Of L3 Communications Corporation Parallel frequency searching in an acquisition correlator
BR112015014227A2 (pt) * 2012-12-18 2017-07-11 Bae Systems Plc sistema de antena, e, método para controlar um sistema de antena direcional
AU2014320131B2 (en) * 2013-09-13 2019-01-17 Bae Systems Plc Anomalous propagation detection

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742500A (en) * 1970-08-24 1973-06-26 Raytheon Co Mti radar
US3720942A (en) * 1971-03-04 1973-03-13 Hughes Aircraft Co Video processing system
US4058809A (en) * 1972-06-26 1977-11-15 Control Data Corporation MTI system and method
US3987442A (en) * 1974-06-24 1976-10-19 Raytheon Company Digital MTI radar system
US4031364A (en) * 1975-11-10 1977-06-21 Hughes Aircraft Company Multiple moment video detector
US4064511A (en) * 1976-09-24 1977-12-20 Raytheon Company Clutter subtraction system

Also Published As

Publication number Publication date
US4104631A (en) 1978-08-01
NO146690C (no) 1982-11-17
BE852863A (fr) 1977-09-26
DK149372B (da) 1986-05-20
NL7703028A (nl) 1977-10-04
DK149372C (da) 1986-11-03
NO771089L (no) 1977-10-04
NO146690B (no) 1982-08-09

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Legal Events

Date Code Title Description
PBP Patent lapsed