NL29745C - - Google Patents

Info

Publication number
NL29745C
NL29745C NL29745DA NL29745C NL 29745 C NL29745 C NL 29745C NL 29745D A NL29745D A NL 29745DA NL 29745 C NL29745 C NL 29745C
Authority
NL
Netherlands
Application number
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.)
Publication of NL29745C publication Critical patent/NL29745C/xx

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
    • 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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
NL29745D 1929-06-25 NL29745C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR692659T 1929-06-25

Publications (1)

Publication Number Publication Date
NL29745C true NL29745C (fr)

Family

ID=9038530

Family Applications (1)

Application Number Title Priority Date Filing Date
NL29745D NL29745C (fr) 1929-06-25

Country Status (3)

Country Link
US (1) US1983729A (fr)
FR (1) FR692659A (fr)
NL (1) NL29745C (fr)

Also Published As

Publication number Publication date
US1983729A (en) 1934-12-11
FR692659A (fr) 1930-11-08

Similar Documents

Publication Publication Date Title
BE357721A (fr)
AT126897B (fr)
BE356979A (fr)
BE358399A (fr)
BE308711A (fr)
BE328560A (fr)
BE331572A (fr)
BE332768A (fr)
BE335686A (fr)
BE337359A (fr)
BE338690A (fr)
BE343605A (fr)
BE343892A (fr)
BE344502A (fr)
BE344529A (fr)
NL29745C (fr)
BE349166A (fr)
BE351245A (fr)
BE351620A (fr)
BE352511A (fr)
BE354157A (fr)
BE354333A (fr)
BE356773A (fr)
BE346078A (fr)
BE302977A (fr)