FR2281613B1 - - Google Patents

Info

Publication number
FR2281613B1
FR2281613B1 FR7524555A FR7524555A FR2281613B1 FR 2281613 B1 FR2281613 B1 FR 2281613B1 FR 7524555 A FR7524555 A FR 7524555A FR 7524555 A FR7524555 A FR 7524555A FR 2281613 B1 FR2281613 B1 FR 2281613B1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7524555A
Other languages
French (fr)
Other versions
FR2281613A2 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Litchstreet Co
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
Priority to FR7524555A priority Critical patent/FR2281613A2/en
Publication of FR2281613A2 publication Critical patent/FR2281613A2/en
Application granted granted Critical
Publication of FR2281613B1 publication Critical patent/FR2281613B1/fr
Granted legal-status Critical Current

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)
FR7524555A 1971-09-15 1975-08-06 Surveillance secondary radar system - uses method for determination of its distance from one of its own transponder stations Granted FR2281613A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7524555A FR2281613A2 (en) 1971-09-15 1975-08-06 Surveillance secondary radar system - uses method for determination of its distance from one of its own transponder stations

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18057871A 1971-09-15 1971-09-15
FR7524555A FR2281613A2 (en) 1971-09-15 1975-08-06 Surveillance secondary radar system - uses method for determination of its distance from one of its own transponder stations

Publications (2)

Publication Number Publication Date
FR2281613A2 FR2281613A2 (en) 1976-03-05
FR2281613B1 true FR2281613B1 (en) 1982-10-22

Family

ID=26219021

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7524555A Granted FR2281613A2 (en) 1971-09-15 1975-08-06 Surveillance secondary radar system - uses method for determination of its distance from one of its own transponder stations

Country Status (1)

Country Link
FR (1) FR2281613A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735408A (en) * 1971-04-05 1973-05-22 Litchstreet Co Common azimuth sector indicating system
US3757324A (en) * 1971-09-15 1973-09-04 Litchstreet Co Proximity indication with range and bearing measurements
GB1471246A (en) * 1971-09-15 1977-04-21 Litchstreet Co Bearing determination using secondary surveillance radar
US3875570A (en) * 1973-03-27 1975-04-01 Litchstreet Co Adaptive proximity indicating system

Also Published As

Publication number Publication date
FR2281613A2 (en) 1976-03-05

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Legal Events

Date Code Title Description
ST Notification of lapse