FR57355E - Improvements to the direction-finding system - Google Patents

Improvements to the direction-finding system

Info

Publication number
FR57355E
FR57355E FR57355DA FR57355E FR 57355 E FR57355 E FR 57355E FR 57355D A FR57355D A FR 57355DA FR 57355 E FR57355 E FR 57355E
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 FR57355E publication Critical patent/FR57355E/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)
FR57355D 1948-06-16 1948-06-16 Improvements to the direction-finding system Expired FR57355E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR57355T 1948-06-16

Publications (1)

Publication Number Publication Date
FR57355E true FR57355E (en) 1953-01-02

Family

ID=8691415

Family Applications (1)

Application Number Title Priority Date Filing Date
FR57355D Expired FR57355E (en) 1948-06-16 1948-06-16 Improvements to the direction-finding system

Country Status (1)

Country Link
FR (1) FR57355E (en)

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