NO176777C - Radaranlegg til påvisning av helikoptere - Google Patents

Radaranlegg til påvisning av helikoptere

Info

Publication number
NO176777C
NO176777C NO910714A NO910714A NO176777C NO 176777 C NO176777 C NO 176777C NO 910714 A NO910714 A NO 910714A NO 910714 A NO910714 A NO 910714A NO 176777 C NO176777 C NO 176777C
Authority
NO
Norway
Prior art keywords
helicopters
detection
radar facilities
radar
facilities
Prior art date
Application number
NO910714A
Other languages
English (en)
Other versions
NO910714L (no
NO176777B (no
NO910714D0 (no
Inventor
Petrus Johannes Rotgans
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
Publication of NO910714D0 publication Critical patent/NO910714D0/no
Publication of NO910714L publication Critical patent/NO910714L/no
Publication of NO176777B publication Critical patent/NO176777B/no
Publication of NO176777C publication Critical patent/NO176777C/no

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)
NO910714A 1990-02-23 1991-02-22 Radaranlegg til påvisning av helikoptere NO176777C (no)

Applications Claiming Priority (1)

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

Publications (4)

Publication Number Publication Date
NO910714D0 NO910714D0 (no) 1991-02-22
NO910714L NO910714L (no) 1991-08-26
NO176777B NO176777B (no) 1995-02-13
NO176777C true NO176777C (no) 1995-05-24

Family

ID=19856656

Family Applications (1)

Application Number Title Priority Date Filing Date
NO910714A NO176777C (no) 1990-02-23 1991-02-22 Radaranlegg til påvisning av helikoptere

Country Status (8)

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

Families Citing this family (7)

* 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
RU2191400C2 (ru) * 1999-12-09 2002-10-20 Архипов Евгений Анатольевич Обнаружитель переотраженных сигналов
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
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
FR2820214A1 (fr) * 2001-01-30 2002-08-02 Meteo France Procede de detection radar
RU2293350C2 (ru) * 2005-04-26 2007-02-10 Федеральное Государственное Унитарное Предприятие "Нижегородский Научно-Исследовательский Институт Радиотехники" Устройство для обнаружения и классификации летящих и зависших вертолетов
US7522089B2 (en) * 2006-06-12 2009-04-21 Raytheon Company Airborne look-down doppler radar tracking of hovering helicopters using rotor features

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
NO910714L (no) 1991-08-26
EP0443658B1 (en) 1995-01-11
CA2035611A1 (en) 1991-08-24
CA2035611C (en) 1995-09-12
TR24858A (tr) 1992-07-01
DE69106548D1 (de) 1995-02-23
AU635999B2 (en) 1993-04-08
DE69106548T2 (de) 1995-07-20
NO176777B (no) 1995-02-13
NO910714D0 (no) 1991-02-22
AU7024691A (en) 1991-08-29
NL9000437A (nl) 1991-09-16
EP0443658A1 (en) 1991-08-28

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