FR864388A - Method of determining the site at which an electromagnetic wave arrives, embodiments and application to the detection of airplanes and the like - Google Patents

Method of determining the site at which an electromagnetic wave arrives, embodiments and application to the detection of airplanes and the like

Info

Publication number
FR864388A
FR864388A FR864388DA FR864388A FR 864388 A FR864388 A FR 864388A FR 864388D A FR864388D A FR 864388DA FR 864388 A FR864388 A FR 864388A
Authority
FR
France
Prior art keywords
airplanes
site
determining
detection
application
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
Henri De France
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 filed Critical
Application granted granted Critical
Publication of FR864388A publication Critical patent/FR864388A/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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR864388D 1939-12-02 1939-12-02 Method of determining the site at which an electromagnetic wave arrives, embodiments and application to the detection of airplanes and the like Expired FR864388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR864388T 1939-12-02

Publications (1)

Publication Number Publication Date
FR864388A true FR864388A (en) 1941-04-25

Family

ID=9343821

Family Applications (1)

Application Number Title Priority Date Filing Date
FR864388D Expired FR864388A (en) 1939-12-02 1939-12-02 Method of determining the site at which an electromagnetic wave arrives, embodiments and application to the detection of airplanes and the like

Country Status (1)

Country Link
FR (1) FR864388A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2074724A1 (en) * 1970-01-21 1971-10-08 Comp Generale Electricite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2074724A1 (en) * 1970-01-21 1971-10-08 Comp Generale Electricite

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