FR2281575B1 - - Google Patents

Info

Publication number
FR2281575B1
FR2281575B1 FR7427250A FR7427250A FR2281575B1 FR 2281575 B1 FR2281575 B1 FR 2281575B1 FR 7427250 A FR7427250 A FR 7427250A FR 7427250 A FR7427250 A FR 7427250A FR 2281575 B1 FR2281575 B1 FR 2281575B1
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
FR7427250A
Other versions
FR2281575A1 (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
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Priority to FR7427250A priority Critical patent/FR2281575A1/fr
Publication of FR2281575A1 publication Critical patent/FR2281575A1/fr
Application granted granted Critical
Publication of FR2281575B1 publication Critical patent/FR2281575B1/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
    • 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
    • G01S3/16—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic
    • G01S3/22—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic derived from different combinations of signals from separate antennas, e.g. comparing sum with difference
    • 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
    • G01S3/28—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics
    • G01S3/32—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics derived from different combinations of signals from separate antennas, e.g. comparing sum with difference

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
FR7427250A 1974-08-06 1974-08-06 Appareil localisateur de sources radioelectriques Granted FR2281575A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7427250A FR2281575A1 (fr) 1974-08-06 1974-08-06 Appareil localisateur de sources radioelectriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7427250A FR2281575A1 (fr) 1974-08-06 1974-08-06 Appareil localisateur de sources radioelectriques

Publications (2)

Publication Number Publication Date
FR2281575A1 FR2281575A1 (fr) 1976-03-05
FR2281575B1 true FR2281575B1 (fr) 1978-04-28

Family

ID=9142160

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7427250A Granted FR2281575A1 (fr) 1974-08-06 1974-08-06 Appareil localisateur de sources radioelectriques

Country Status (1)

Country Link
FR (1) FR2281575A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523375A1 (fr) * 1982-03-10 1983-09-16 Europ Agence Spatiale Dispositif de compensation des distorsions des reflecteurs pour antennes de reception et/ou transmission d'ondes a faisceaux multiples
IT1199172B (it) * 1984-07-27 1988-12-30 Selenia Ind Elettroniche Sistema per il controllo fine del puntamento di antenne con sensore a radio frequenza,ad ampio campo di acquisizione angolare
US4724442A (en) * 1986-05-29 1988-02-09 E-Systems, Inc. Method and apparatus for loop direction finding with no ambiguity

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659082A (en) * 1946-04-30 1953-11-10 Paul A Pearson Radio direction finder

Also Published As

Publication number Publication date
FR2281575A1 (fr) 1976-03-05

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Legal Events

Date Code Title Description
ST Notification of lapse