IT1250977B - Radar di sorveglianza secondaria virtuale utilizzante segnali di ssr a distanza. - Google Patents

Radar di sorveglianza secondaria virtuale utilizzante segnali di ssr a distanza.

Info

Publication number
IT1250977B
IT1250977B ITRM910973A ITRM910973A IT1250977B IT 1250977 B IT1250977 B IT 1250977B IT RM910973 A ITRM910973 A IT RM910973A IT RM910973 A ITRM910973 A IT RM910973A IT 1250977 B IT1250977 B IT 1250977B
Authority
IT
Italy
Prior art keywords
remote
secondary surveillance
ssr
virtual secondary
surveillance radar
Prior art date
Application number
ITRM910973A
Other languages
English (en)
Inventor
George B Litchford
Burton L Hulland
Original Assignee
Litchstreet 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 Litchstreet Co filed Critical Litchstreet Co
Publication of ITRM910973A0 publication Critical patent/ITRM910973A0/it
Publication of ITRM910973A1 publication Critical patent/ITRM910973A1/it
Application granted granted Critical
Publication of IT1250977B publication Critical patent/IT1250977B/it

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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
    • G01S13/781—Secondary Surveillance Radar [SSR] in general

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)

Abstract

Un radar di sorveglianza secondaria virtuale (VSSR), "virtual secondary surveillance radar" del tipo descritto nel brevetto statunitense No. 4.115.771 può produrre informazioni di distanza inaccurate o indeterminate per un trasponder posizionato su, o vicino a, una retta tra il SSR reali e il VSSR, a causa di sfavorevoli relazioni geometriche. Questo può essere evitato ricevendo i segnali di interrogazione e di replica del SSR a due o più posizioni separate e elaborando i segnali informazioni di posizione ad un posto di visualizzazione. Non è richiesta alcuna trasmissione radar oltre quelle degli ATCRBS esistenti.
ITRM910973A 1991-01-07 1991-12-30 Radar di sorveglianza secondaria virtuale utilizzante segnali di ssr a distanza. IT1250977B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/638,083 US5140328A (en) 1991-01-07 1991-01-07 Virtual secondary surveillance radar using signals of remote ssr

Publications (3)

Publication Number Publication Date
ITRM910973A0 ITRM910973A0 (it) 1991-12-30
ITRM910973A1 ITRM910973A1 (it) 1993-06-30
IT1250977B true IT1250977B (it) 1995-04-24

Family

ID=24558578

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM910973A IT1250977B (it) 1991-01-07 1991-12-30 Radar di sorveglianza secondaria virtuale utilizzante segnali di ssr a distanza.

Country Status (6)

Country Link
US (1) US5140328A (it)
CA (1) CA2057230A1 (it)
DE (1) DE4200191A1 (it)
FR (1) FR2675268B1 (it)
GB (1) GB2252693B (it)
IT (1) IT1250977B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2991710B1 (ja) * 1998-10-30 1999-12-20 運輸省船舶技術研究所長 Ｓｓｒ装置及び航空機二次監視網
JP2018048812A (ja) * 2016-09-19 2018-03-29 国立研究開発法人 海上・港湾・航空技術研究所 探索システム、探索演算装置及び探索方法
US12276721B2 (en) * 2018-02-14 2025-04-15 Seamatica Aerospace Ltd. Method and apparatus for determining a position of an airborne vehicle using secondary surveillance radars as beacons
US12181565B2 (en) 2018-02-14 2024-12-31 Seamatica Aerospace Ltd. Aviation detect and avoid method and system
JP6995326B2 (ja) * 2021-01-19 2022-01-14 国立研究開発法人 海上・港湾・航空技術研究所 レーダシステム及びレーダ探索方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515332A (en) * 1943-08-12 1950-07-18 Bell Telephone Labor Inc Object locating system
BE663241A (it) * 1965-04-30 1965-11-03
US4115771A (en) * 1976-05-11 1978-09-19 Litchstreet Co. Passive ATCRBS using signals of remote SSR
DE3012616C2 (de) * 1980-04-01 1982-11-04 Standard Elektrik Lorenz Ag, 7000 Stuttgart Flughafenüberwachungseinrichtung
GB2203912B (en) * 1985-12-20 1991-04-10 Litchstreet Co Position finding and collision avoidance systems
FR2614455B1 (fr) * 1985-12-20 1994-12-02 Litchstreet Co Procede et appareil anti-collision et de mesure de gisement pour aeronefs
DE3637129A1 (de) * 1986-10-31 1988-05-11 Deutsche Forsch Luft Raumfahrt Verfahren zur positionsbestimmung eines flugzeuges in einem dreiweg-dme-system
US4789865A (en) * 1987-10-21 1988-12-06 Litchstreet Co. Collision avoidance system
US4899156A (en) * 1989-07-13 1990-02-06 Litchstreet Company Virtual ATCRBS using signals of remote SSR
GB8916815D0 (en) * 1989-07-22 1989-09-06 Atomic Energy Authority Uk Locating system

Also Published As

Publication number Publication date
CA2057230A1 (en) 1992-07-08
FR2675268B1 (fr) 1994-05-13
DE4200191A1 (de) 1992-07-09
GB9126945D0 (en) 1992-02-19
FR2675268A1 (fr) 1992-10-16
GB2252693B (en) 1995-01-11
GB2252693A (en) 1992-08-12
US5140328A (en) 1992-08-18
ITRM910973A0 (it) 1991-12-30
ITRM910973A1 (it) 1993-06-30

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Legal Events

Date Code Title Description
0001 Granted