FR2177504B1 - - Google Patents

Info

Publication number
FR2177504B1
FR2177504B1 FR7210757A FR7210757A FR2177504B1 FR 2177504 B1 FR2177504 B1 FR 2177504B1 FR 7210757 A FR7210757 A FR 7210757A FR 7210757 A FR7210757 A FR 7210757A FR 2177504 B1 FR2177504 B1 FR 2177504B1
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
FR7210757A
Other languages
French (fr)
Other versions
FR2177504A1 (de
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.)
Etat Francais
Original Assignee
Etat Francais
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 Etat Francais filed Critical Etat Francais
Priority to FR7210757A priority Critical patent/FR2177504B1/fr
Publication of FR2177504A1 publication Critical patent/FR2177504A1/fr
Application granted granted Critical
Publication of FR2177504B1 publication Critical patent/FR2177504B1/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
    • 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
    • G01S3/38—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR7210757A 1972-03-28 1972-03-28 Expired FR2177504B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7210757A FR2177504B1 (de) 1972-03-28 1972-03-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7210757A FR2177504B1 (de) 1972-03-28 1972-03-28

Publications (2)

Publication Number Publication Date
FR2177504A1 FR2177504A1 (de) 1973-11-09
FR2177504B1 true FR2177504B1 (de) 1976-10-29

Family

ID=9095893

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7210757A Expired FR2177504B1 (de) 1972-03-28 1972-03-28

Country Status (1)

Country Link
FR (1) FR2177504B1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB399957A (en) * 1931-08-06 1933-10-19 Soc Ind Des Procedes Loth Improvements in apparatus for determining the direction of magnetic or electro-magnetic fields
US1968068A (en) * 1931-08-06 1934-07-31 American Loth Corp Process and apparatus for measuring the phase difference of electric currents

Also Published As

Publication number Publication date
FR2177504A1 (de) 1973-11-09

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Legal Events

Date Code Title Description
ST Notification of lapse