NL189625C - Mti-filter in de ontvangeenheid van een radarstelsel. - Google Patents

Mti-filter in de ontvangeenheid van een radarstelsel.

Info

Publication number
NL189625C
NL189625C NLAANVRAGE8020159,A NL8020159A NL189625C NL 189625 C NL189625 C NL 189625C NL 8020159 A NL8020159 A NL 8020159A NL 189625 C NL189625 C NL 189625C
Authority
NL
Netherlands
Prior art keywords
reception
radar system
mti filter
mti
filter
Prior art date
Application number
NLAANVRAGE8020159,A
Other languages
English (en)
Other versions
NL189625B (nl
NL8020159A (nl
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of NL8020159A publication Critical patent/NL8020159A/nl
Publication of NL189625B publication Critical patent/NL189625B/nl
Application granted granted Critical
Publication of NL189625C publication Critical patent/NL189625C/nl

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)
NLAANVRAGE8020159,A 1979-04-25 1980-04-23 Mti-filter in de ontvangeenheid van een radarstelsel. NL189625C (nl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE7903654 1979-04-25
SE7903654A SE417138B (sv) 1979-04-25 1979-04-25 Mti-filter ingaende i mottagaren i en foljeradar
SE8000123 1980-01-08
PCT/SE1980/000123 WO1980002327A1 (en) 1979-04-25 1980-04-23 Mti-filter in a tracking radar receiver

Publications (3)

Publication Number Publication Date
NL8020159A NL8020159A (nl) 1981-08-03
NL189625B NL189625B (nl) 1993-01-04
NL189625C true NL189625C (nl) 1993-06-01

Family

ID=20337905

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE8020159,A NL189625C (nl) 1979-04-25 1980-04-23 Mti-filter in de ontvangeenheid van een radarstelsel.

Country Status (10)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
AU2003206448A1 (en) * 2003-02-03 2004-08-30 Telefonaktiebolaget Lm Ericsson (Publ) A method for controlling a radar antenna
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

Family Cites Families (10)

* 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
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
DE2434732A1 (de) * 1974-07-19 1976-01-29 Westinghouse Electric Corp Impuls-dopplerradarsystem
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

Also Published As

Publication number Publication date
IT1148797B (it) 1986-12-03
IT8021627A0 (it) 1980-04-24
US4385298A (en) 1983-05-24
FR2455289B1 (nl) 1984-06-29
JPS56500427A (nl) 1981-04-02
NL189625B (nl) 1993-01-04
WO1980002327A1 (en) 1980-10-30
JPH0131154B2 (nl) 1989-06-23
SE7903654L (sv) 1980-10-26
GB2072989A (en) 1981-10-07
FR2455289A1 (fr) 1980-11-21
GB2072989B (en) 1983-06-02
DE3041459A1 (en) 1982-02-18
NL8020159A (nl) 1981-08-03
DE3041459C2 (nl) 1989-09-07
CH651937A5 (de) 1985-10-15
SE417138B (sv) 1981-02-23

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V4 Discontinued because of reaching the maximum lifetime of a patent

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