FR2284887A1 - Indicateur de direction - Google Patents

Indicateur de direction

Info

Publication number
FR2284887A1
FR2284887A1 FR7430533A FR7430533A FR2284887A1 FR 2284887 A1 FR2284887 A1 FR 2284887A1 FR 7430533 A FR7430533 A FR 7430533A FR 7430533 A FR7430533 A FR 7430533A FR 2284887 A1 FR2284887 A1 FR 2284887A1
Authority
FR
France
Prior art keywords
direction indicator
indicator
Prior art date
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Withdrawn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
FR7430533A
Other languages
English (en)
Inventor
Charles Wilfred Rich
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of FR2284887A1 publication Critical patent/FR2284887A1/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Withdrawn legal-status Critical Current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
    • G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR7430533A 1973-10-03 1974-09-10 Indicateur de direction Withdrawn FR2284887A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4612173A GB1475289A (en) 1973-10-03 1973-10-03 Direction finders

Publications (1)

Publication Number Publication Date
FR2284887A1 true FR2284887A1 (fr) 1976-04-09

Family

ID=10439926

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7430533A Withdrawn FR2284887A1 (fr) 1973-10-03 1974-09-10 Indicateur de direction

Country Status (2)

Country Link
FR (1) FR2284887A1 (fr)
GB (1) GB1475289A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998018018A1 (fr) * 1996-10-24 1998-04-30 Northern Telecom Limited Determination de la direction de deplacement d'un terminal mobile dans un systeme de communications cellulaire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2095497B (en) * 1981-03-24 1984-08-15 Racal Communications Equip Improvements in and relating to direction finding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998018018A1 (fr) * 1996-10-24 1998-04-30 Northern Telecom Limited Determination de la direction de deplacement d'un terminal mobile dans un systeme de communications cellulaire

Also Published As

Publication number Publication date
GB1475289A (en) 1977-06-01

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Legal Events

Date Code Title Description
ST Notification of lapse