FR871873A - Improvements to direction indicating devices of an electromagnetic wave transmitter - Google Patents

Improvements to direction indicating devices of an electromagnetic wave transmitter

Info

Publication number
FR871873A
FR871873A FR871873DA FR871873A FR 871873 A FR871873 A FR 871873A FR 871873D A FR871873D A FR 871873DA FR 871873 A FR871873 A FR 871873A
Authority
FR
France
Prior art keywords
electromagnetic wave
wave transmitter
direction indicating
indicating devices
devices
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR871873A publication Critical patent/FR871873A/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
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR871873D 1939-12-20 1941-05-03 Improvements to direction indicating devices of an electromagnetic wave transmitter Expired FR871873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE871873X 1939-12-20

Publications (1)

Publication Number Publication Date
FR871873A true FR871873A (en) 1942-05-20

Family

ID=6815805

Family Applications (1)

Application Number Title Priority Date Filing Date
FR871873D Expired FR871873A (en) 1939-12-20 1941-05-03 Improvements to direction indicating devices of an electromagnetic wave transmitter

Country Status (1)

Country Link
FR (1) FR871873A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376573A (en) * 1967-06-30 1968-04-02 Collins Radio Co Crab angle sensing system for allweather landing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376573A (en) * 1967-06-30 1968-04-02 Collins Radio Co Crab angle sensing system for allweather landing system

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