FR994552A - Improvement in direction finders - Google Patents

Improvement in direction finders

Info

Publication number
FR994552A
FR994552A FR994552DA FR994552A FR 994552 A FR994552 A FR 994552A FR 994552D A FR994552D A FR 994552DA FR 994552 A FR994552 A FR 994552A
Authority
FR
France
Prior art keywords
improvement
direction finders
finders
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Jean-Marie Caradec
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 filed Critical
Application granted granted Critical
Publication of FR994552A publication Critical patent/FR994552A/en
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
    • G01S3/04—Details
    • G01S3/12—Means for determining sense of direction, e.g. by combining signals from directional antenna or goniometer search coil with those from non-directional antenna

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR994552D 1949-07-08 1949-07-08 Improvement in direction finders Expired FR994552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR994552T 1949-07-08

Publications (1)

Publication Number Publication Date
FR994552A true FR994552A (en) 1951-11-19

Family

ID=9556519

Family Applications (1)

Application Number Title Priority Date Filing Date
FR994552D Expired FR994552A (en) 1949-07-08 1949-07-08 Improvement in direction finders

Country Status (1)

Country Link
FR (1) FR994552A (en)

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