FR57356E - Improvements to the direction-finding system - Google Patents

Improvements to the direction-finding system

Info

Publication number
FR57356E
FR57356E FR57356DA FR57356E FR 57356 E FR57356 E FR 57356E FR 57356D A FR57356D A FR 57356DA FR 57356 E FR57356 E FR 57356E
Authority
FR
France
Prior art keywords
finding system
finding
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
Pierre Bodez
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.)
Sadir Carpentier SA
Original Assignee
Sadir Carpentier 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 Sadir Carpentier SA filed Critical Sadir Carpentier SA
Application granted granted Critical
Publication of FR57356E publication Critical patent/FR57356E/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
    • G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR57356D 1948-06-16 1948-06-16 Improvements to the direction-finding system Expired FR57356E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR57356T 1948-06-16

Publications (1)

Publication Number Publication Date
FR57356E true FR57356E (en) 1953-01-02

Family

ID=8691416

Family Applications (1)

Application Number Title Priority Date Filing Date
FR57356D Expired FR57356E (en) 1948-06-16 1948-06-16 Improvements to the direction-finding system

Country Status (1)

Country Link
FR (1) FR57356E (en)

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