FR863776A - Improvements in radio direction finding - Google Patents

Improvements in radio direction finding

Info

Publication number
FR863776A
FR863776A FR863776DA FR863776A FR 863776 A FR863776 A FR 863776A FR 863776D A FR863776D A FR 863776DA FR 863776 A FR863776 A FR 863776A
Authority
FR
France
Prior art keywords
direction finding
radio direction
radio
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)
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.)
Cie Nationale Electro L L
Original Assignee
Cie Nationale Electro L L
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 Cie Nationale Electro L L filed Critical Cie Nationale Electro L L
Application granted granted Critical
Publication of FR863776A publication Critical patent/FR863776A/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
    • G01S3/065—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 by using non-directional aerial

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR863776D 1939-09-29 1939-09-29 Improvements in radio direction finding Expired FR863776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR863776T 1939-09-29

Publications (1)

Publication Number Publication Date
FR863776A true FR863776A (en) 1941-04-09

Family

ID=9343391

Family Applications (1)

Application Number Title Priority Date Filing Date
FR863776D Expired FR863776A (en) 1939-09-29 1939-09-29 Improvements in radio direction finding

Country Status (1)

Country Link
FR (1) FR863776A (en)

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