FR2229980A1 - - Google Patents

Info

Publication number
FR2229980A1
FR2229980A1 FR7318137A FR7318137A FR2229980A1 FR 2229980 A1 FR2229980 A1 FR 2229980A1 FR 7318137 A FR7318137 A FR 7318137A FR 7318137 A FR7318137 A FR 7318137A FR 2229980 A1 FR2229980 A1 FR 2229980A1
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.)
Withdrawn
Application number
FR7318137A
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7318137A priority Critical patent/FR2229980A1/fr
Priority to DE19742424159 priority patent/DE2424159A1/de
Priority to JP5464074A priority patent/JPS5020686A/ja
Publication of FR2229980A1 publication Critical patent/FR2229980A1/fr
Withdrawn legal-status Critical Current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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/52—Systems for determining direction or deviation from predetermined direction using a receiving antenna moving, or appearing to move, in a cyclic path to produce a Doppler variation of frequency of the received signal
    • G01S3/54—Systems for determining direction or deviation from predetermined direction using a receiving antenna moving, or appearing to move, in a cyclic path to produce a Doppler variation of frequency of the received signal the apparent movement of the antenna being produced by coupling the receiver cyclically and sequentially to each of several fixed spaced antennas
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR7318137A 1973-05-18 1973-05-18 Withdrawn FR2229980A1 (enrdf_load_stackoverflow)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7318137A FR2229980A1 (enrdf_load_stackoverflow) 1973-05-18 1973-05-18
DE19742424159 DE2424159A1 (de) 1973-05-18 1974-05-17 Anordnung zur fuehrung von luftfahrzeugen entlang einer winkelkoordinate
JP5464074A JPS5020686A (enrdf_load_stackoverflow) 1973-05-18 1974-05-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7318137A FR2229980A1 (enrdf_load_stackoverflow) 1973-05-18 1973-05-18

Publications (1)

Publication Number Publication Date
FR2229980A1 true FR2229980A1 (enrdf_load_stackoverflow) 1974-12-13

Family

ID=9119567

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7318137A Withdrawn FR2229980A1 (enrdf_load_stackoverflow) 1973-05-18 1973-05-18

Country Status (3)

Country Link
JP (1) JPS5020686A (enrdf_load_stackoverflow)
DE (1) DE2424159A1 (enrdf_load_stackoverflow)
FR (1) FR2229980A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5614944B1 (enrdf_load_stackoverflow) * 1971-03-15 1981-04-07
JPS5426150U (enrdf_load_stackoverflow) * 1977-07-26 1979-02-20
DE2813189C2 (de) * 1978-03-25 1984-03-08 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Verfahren zur präzisen Flugführung und Navigation

Also Published As

Publication number Publication date
DE2424159A1 (de) 1974-12-05
JPS5020686A (enrdf_load_stackoverflow) 1975-03-05

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Legal Events

Date Code Title Description
ST Notification of lapse