NL9000437A - Radarapparaat voor de detectie van helicopters. - Google Patents

Radarapparaat voor de detectie van helicopters. Download PDF

Info

Publication number
NL9000437A
NL9000437A NL9000437A NL9000437A NL9000437A NL 9000437 A NL9000437 A NL 9000437A NL 9000437 A NL9000437 A NL 9000437A NL 9000437 A NL9000437 A NL 9000437A NL 9000437 A NL9000437 A NL 9000437A
Authority
NL
Netherlands
Prior art keywords
group
unit
detection
radar apparatus
radar
Prior art date
Application number
NL9000437A
Other languages
English (en)
Dutch (nl)
Original Assignee
Hollandse Signaalapparaten Bv
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 Hollandse Signaalapparaten Bv filed Critical Hollandse Signaalapparaten Bv
Priority to NL9000437A priority Critical patent/NL9000437A/nl
Priority to CA002035611A priority patent/CA2035611C/en
Priority to AU70246/91A priority patent/AU635999B2/en
Priority to EP91200261A priority patent/EP0443658B1/en
Priority to DE69106548T priority patent/DE69106548T2/de
Priority to TR91/0137A priority patent/TR24858A/xx
Priority to US07/657,571 priority patent/US5055848A/en
Priority to NO910714A priority patent/NO176777C/no
Publication of NL9000437A publication Critical patent/NL9000437A/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
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/292—Extracting wanted echo-signals
    • G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
    • G01S7/2927—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by deriving and controlling a threshold value
    • 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

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)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
NL9000437A 1990-02-23 1990-02-23 Radarapparaat voor de detectie van helicopters. NL9000437A (nl)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL9000437A NL9000437A (nl) 1990-02-23 1990-02-23 Radarapparaat voor de detectie van helicopters.
CA002035611A CA2035611C (en) 1990-02-23 1991-02-04 Radar apparatus for the detection of helicopters
AU70246/91A AU635999B2 (en) 1990-02-23 1991-02-05 Radar apparatus for the detection of helicopters
EP91200261A EP0443658B1 (en) 1990-02-23 1991-02-08 Radar apparatus for the detection of helicopters
DE69106548T DE69106548T2 (de) 1990-02-23 1991-02-08 Radargerät zum Detektieren von Hubschraubern.
TR91/0137A TR24858A (tr) 1990-02-23 1991-02-15 Helikopterlerin saptanmasi icin radar cihazi
US07/657,571 US5055848A (en) 1990-02-23 1991-02-19 Radar apparatus for the detection of helicopters
NO910714A NO176777C (no) 1990-02-23 1991-02-22 Radaranlegg til påvisning av helikoptere

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9000437 1990-02-23
NL9000437A NL9000437A (nl) 1990-02-23 1990-02-23 Radarapparaat voor de detectie van helicopters.

Publications (1)

Publication Number Publication Date
NL9000437A true NL9000437A (nl) 1991-09-16

Family

ID=19856656

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9000437A NL9000437A (nl) 1990-02-23 1990-02-23 Radarapparaat voor de detectie van helicopters.

Country Status (8)

Country Link
US (1) US5055848A (xx)
EP (1) EP0443658B1 (xx)
AU (1) AU635999B2 (xx)
CA (1) CA2035611C (xx)
DE (1) DE69106548T2 (xx)
NL (1) NL9000437A (xx)
NO (1) NO176777C (xx)
TR (1) TR24858A (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2820214A1 (fr) * 2001-01-30 2002-08-02 Meteo France Procede de detection radar
FR2820215A1 (fr) * 2001-01-30 2002-08-02 Meteo France Procede de detection d'obstacles par un systeme radar et procede de caracterisation d'un obstacle detecte par ce procede
US7522089B2 (en) * 2006-06-12 2009-04-21 Raytheon Company Airborne look-down doppler radar tracking of hovering helicopters using rotor features
RU2453863C1 (ru) * 2011-03-31 2012-06-20 Открытое акционерное общество "Федеральный научно-производственный центр "Нижегородский научно-исследовательский институт радиотехники" Устройство радиолокационного распознавания воздушных объектов

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074264A (en) * 1976-01-07 1978-02-14 Hughes Aircraft Company Adaptive threshold clutter processor
NL7908860A (nl) * 1979-12-10 1981-07-01 Hollandse Signaalapparaten Bv Drempelschakeling voor radarvideosignalen.
IT8047830A0 (it) * 1980-02-06 1980-02-06 Selenia Ind Elettroniche Sistema per l'estrazione delle coordinate di un aereo mobile mediante un radar primario
US4550318A (en) * 1982-02-03 1985-10-29 The Johns Hopkins University Retrospective data filter
US4845500A (en) * 1988-03-25 1989-07-04 Sperry Marine Inc. Radar video detector and target tracker

Also Published As

Publication number Publication date
US5055848A (en) 1991-10-08
TR24858A (tr) 1992-07-01
AU635999B2 (en) 1993-04-08
NO910714D0 (no) 1991-02-22
AU7024691A (en) 1991-08-29
EP0443658A1 (en) 1991-08-28
CA2035611A1 (en) 1991-08-24
NO176777B (no) 1995-02-13
DE69106548T2 (de) 1995-07-20
CA2035611C (en) 1995-09-12
DE69106548D1 (de) 1995-02-23
NO910714L (no) 1991-08-26
EP0443658B1 (en) 1995-01-11
NO176777C (no) 1995-05-24

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