SE8702884D0 - Radar - Google Patents

Radar

Info

Publication number
SE8702884D0
SE8702884D0 SE8702884A SE8702884A SE8702884D0 SE 8702884 D0 SE8702884 D0 SE 8702884D0 SE 8702884 A SE8702884 A SE 8702884A SE 8702884 A SE8702884 A SE 8702884A SE 8702884 D0 SE8702884 D0 SE 8702884D0
Authority
SE
Sweden
Prior art keywords
signals
filter
doppler
receiver
receives
Prior art date
Application number
SE8702884A
Other languages
English (en)
Inventor
T J Abatzoglou
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 SE8702884D0 publication Critical patent/SE8702884D0/sv

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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G01S7/415—Identification of targets based on measurements of movement associated with the target
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
SE8702884A 1985-12-19 1987-07-16 Radar SE8702884D0 (sv)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/811,599 US5376940A (en) 1985-12-19 1985-12-19 Helicopter recognition radar processor
DE3723265A DE3723265C1 (de) 1985-12-19 1987-07-14 Vorrichtung und Verfahren zur Radarerkennung von Hubschraubern
CA002104441A CA2104441C (en) 1985-12-19 1993-08-19 Helicopter recognition radar processor

Publications (1)

Publication Number Publication Date
SE8702884D0 true SE8702884D0 (sv) 1987-07-16

Family

ID=28678473

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8702884A SE8702884D0 (sv) 1985-12-19 1987-07-16 Radar

Country Status (4)

Country Link
US (1) US5376940A (sv)
CA (1) CA2104441C (sv)
DE (1) DE3723265C1 (sv)
SE (1) SE8702884D0 (sv)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7079072B1 (en) * 1987-01-23 2006-07-18 Raytheon Company Helicopter recognition radar processor
US6894639B1 (en) * 1991-12-18 2005-05-17 Raytheon Company Generalized hebbian learning for principal component analysis and automatic target recognition, systems and method
US5465095A (en) * 1994-08-05 1995-11-07 The United States Of America As Represented By The Secretary Of The Air Force Time efficient method for processing adaptive target detection thresholds in doppler radar systems
US5689268A (en) * 1996-08-02 1997-11-18 Boeing North American, Inc. Radar detection and classification of helicopters
SE515481C2 (sv) * 1999-12-14 2001-08-13 Ericsson Telefon Ab L M Förfarande vid mätning av radarmålarea hos ett mätföremål med både rörliga och fasta delar
US6445342B1 (en) * 2000-06-30 2002-09-03 Motorola, Inc. Method and device for multi-user frequency-domain channel estimation
NL1020763C2 (nl) * 2002-06-05 2003-12-08 Thales Nederland Bv Werkwijze en -systeem voor het deconvolueren van een met een onregelmatige PRT bemonsterd signaal, en de toepassingsmogelijkheden ervan.
US7002509B2 (en) * 2003-02-24 2006-02-21 Networkfab Corporation Method and system for emitter identification using transmission signatures
US6801152B1 (en) * 2003-04-21 2004-10-05 Northrop Grumman Corporation Method for determining the optimum observer heading change in bearings-only passive emitter tracking
US7821870B2 (en) * 2005-08-19 2010-10-26 Mitsubishi Electric Research Laboratories Inc. Method and system for identifying moving objects using acoustic signals
US7522089B2 (en) * 2006-06-12 2009-04-21 Raytheon Company Airborne look-down doppler radar tracking of hovering helicopters using rotor features
US7817082B2 (en) * 2007-03-11 2010-10-19 Vawd Applied Science And Technology Corporation Multi frequency spectral imaging radar system and method of target classification
US8816899B2 (en) * 2012-01-26 2014-08-26 Raytheon Company Enhanced target detection using dispersive vs non-dispersive scatterer signal processing
US9568591B2 (en) * 2014-11-10 2017-02-14 Peter Dan Morley Method for search radar processing using random matrix theory
CN106719589A (zh) * 2016-11-29 2017-05-31 歌尔科技有限公司 一种自动驱蚊装置及方法
GB2586608B (en) * 2019-08-28 2023-07-19 Bae Systems Plc Active modulating element detection
WO2021038191A1 (en) 2019-08-28 2021-03-04 Bae Systems Plc Detection of modulating elements
EP4030193A1 (en) * 2021-01-13 2022-07-20 HENSOLDT Sensors GmbH Apparatus and method for identifying helicopter in radar signals

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898654A (en) * 1966-10-26 1975-08-05 Rockwell International Corp Amti radar system
US3798642A (en) * 1972-09-27 1974-03-19 Microlab Fxr Recognition system
US4038656A (en) * 1974-03-27 1977-07-26 The United States Of America As Represented By The Secretary Of The Air Force Helicopter discrimination apparatus for the murine radar
US3983558A (en) * 1974-06-28 1976-09-28 The United States Of America As Represented By The Secretary Of The Army Moving target indicating (MTI) radar systems employing vehicle discriminator apparatus
FR2630221B1 (fr) * 1978-03-14 1991-01-25 Thomson Csf Dispositif d'analyse spectrale et station receptrice d'interception automatique comportant un tel dispositif
US4217585A (en) * 1978-11-09 1980-08-12 The United States Of America As Represented By The Secretary Of The Army Dual frequency Doppler radar
US4233605A (en) * 1979-02-15 1980-11-11 Northrop Corporation Helicopter radar decoy
DE2928907A1 (de) * 1979-07-18 1981-06-19 Siemens AG, 1000 Berlin und 8000 München Verfahren zur klassifizierung bewegter ziele
FR2463938B1 (fr) * 1979-08-23 1985-07-26 Labo Cent Telecommunicat Radar doppler pour detecter et localiser les helicopteres
US4275396A (en) * 1979-10-12 1981-06-23 Jacomini Omar J Helicopter rotating blade detection system
DE3002148A1 (de) * 1980-01-22 1981-10-15 Siemens AG, 1000 Berlin und 8000 München Verfahren zur klassifizierung bewegter ziele
US4370654A (en) * 1980-01-25 1983-01-25 Krutsch Thomas E Apparatus for producing a frequency change of a wage propagating signal
US4389647A (en) * 1980-12-22 1983-06-21 The United States Of America As Represented By The Secretary Of The Army Doppler discrimination of aircraft targets
US4483017A (en) * 1981-07-31 1984-11-13 Rca Corporation Pattern recognition system using switched capacitors
DE3233327C2 (de) * 1982-09-08 1986-04-17 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Entdeckung und Erkennung von Hubschraubern
US4555705A (en) * 1982-11-19 1985-11-26 International Standard Electric Corporation System for providing a summarized information on the line spectrum from a Doppler radar spectrum analyzer

Also Published As

Publication number Publication date
CA2104441A1 (en) 1995-02-20
DE3723265C1 (de) 2003-07-10
CA2104441C (en) 1996-08-06
US5376940A (en) 1994-12-27

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