FR2214930B1 - - Google Patents

Info

Publication number
FR2214930B1
FR2214930B1 FR7302119A FR7302119A FR2214930B1 FR 2214930 B1 FR2214930 B1 FR 2214930B1 FR 7302119 A FR7302119 A FR 7302119A FR 7302119 A FR7302119 A FR 7302119A FR 2214930 B1 FR2214930 B1 FR 2214930B1
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
FR7302119A
Other languages
French (fr)
Other versions
FR2214930A1 (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.)
Laboratoire Central de Telecommunications SA
Original Assignee
Laboratoire Central de Telecommunications SA
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 Laboratoire Central de Telecommunications SA filed Critical Laboratoire Central de Telecommunications SA
Priority to FR7302119A priority Critical patent/FR2214930B1/fr
Priority to NL7400813A priority patent/NL7400813A/xx
Priority to GB288874A priority patent/GB1458402A/en
Publication of FR2214930A1 publication Critical patent/FR2214930A1/fr
Application granted granted Critical
Publication of FR2214930B1 publication Critical patent/FR2214930B1/fr
Expired 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
    • G01S13/765—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with exchange of information between interrogator and responder

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)
FR7302119A 1973-01-22 1973-01-22 Expired FR2214930B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7302119A FR2214930B1 (en) 1973-01-22 1973-01-22
NL7400813A NL7400813A (en) 1973-01-22 1974-01-21
GB288874A GB1458402A (en) 1973-01-22 1974-01-22 Navigation or guidance and piloting aid system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7302119A FR2214930B1 (en) 1973-01-22 1973-01-22

Publications (2)

Publication Number Publication Date
FR2214930A1 FR2214930A1 (en) 1974-08-19
FR2214930B1 true FR2214930B1 (en) 1979-01-12

Family

ID=9113629

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7302119A Expired FR2214930B1 (en) 1973-01-22 1973-01-22

Country Status (3)

Country Link
FR (1) FR2214930B1 (en)
GB (1) GB1458402A (en)
NL (1) NL7400813A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461963A1 (en) * 1979-07-20 1981-02-06 Trt Telecom Radio Electr Radio interrogation and response circuit - uses FM of received signal in accordance with value of quantity to be transmitted
EP2407799B1 (en) * 2010-07-16 2018-04-11 Sivers Ima AB Method and device for continuous wave radar measurements

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518546A (en) * 1966-12-12 1970-06-30 Microlab Fxr Harmonic communication and navigation system
FR2142733A1 (en) * 1971-06-24 1973-02-02 Labo Cent Telecommunicat

Also Published As

Publication number Publication date
NL7400813A (en) 1974-07-24
FR2214930A1 (en) 1974-08-19
GB1458402A (en) 1976-12-15

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Legal Events

Date Code Title Description
ST Notification of lapse