FR859904A - Method and systems for finding the direction of propagation of electromagnetic waves - Google Patents

Method and systems for finding the direction of propagation of electromagnetic waves

Info

Publication number
FR859904A
FR859904A FR859904DA FR859904A FR 859904 A FR859904 A FR 859904A FR 859904D A FR859904D A FR 859904DA FR 859904 A FR859904 A FR 859904A
Authority
FR
France
Prior art keywords
propagation
finding
systems
electromagnetic waves
waves
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR859904A publication Critical patent/FR859904A/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
    • G01S3/12—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)
  • Near-Field Transmission Systems (AREA)
FR859904D 1939-06-03 1939-06-03 Method and systems for finding the direction of propagation of electromagnetic waves Expired FR859904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR859904T 1939-06-03

Publications (1)

Publication Number Publication Date
FR859904A true FR859904A (en) 1941-01-02

Family

ID=9330722

Family Applications (1)

Application Number Title Priority Date Filing Date
FR859904D Expired FR859904A (en) 1939-06-03 1939-06-03 Method and systems for finding the direction of propagation of electromagnetic waves

Country Status (2)

Country Link
FR (1) FR859904A (en)
GB (1) GB541657A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605461A (en) * 1945-05-16 1952-07-29 James F Koehler Radio echo detection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605461A (en) * 1945-05-16 1952-07-29 James F Koehler Radio echo detection system

Also Published As

Publication number Publication date
GB541657A (en) 1941-12-05

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