FR778931A - Methods and devices for determining the positions of a mobile, in particular an airplane or a ship - Google Patents

Methods and devices for determining the positions of a mobile, in particular an airplane or a ship

Info

Publication number
FR778931A
FR778931A FR778931DA FR778931A FR 778931 A FR778931 A FR 778931A FR 778931D A FR778931D A FR 778931DA FR 778931 A FR778931 A FR 778931A
Authority
FR
France
Prior art keywords
airplane
ship
mobile
positions
determining
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.)
EXPLOROTOR S A
Original Assignee
EXPLOROTOR S A
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 EXPLOROTOR S A filed Critical EXPLOROTOR S A
Application granted granted Critical
Publication of FR778931A publication Critical patent/FR778931A/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
    • G01S1/72—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 ultrasonic, sonic or infrasonic 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)
FR778931D 1934-09-26 1934-09-26 Methods and devices for determining the positions of a mobile, in particular an airplane or a ship Expired FR778931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR778931T 1934-09-26

Publications (1)

Publication Number Publication Date
FR778931A true FR778931A (en) 1935-03-26

Family

ID=9202446

Family Applications (1)

Application Number Title Priority Date Filing Date
FR778931D Expired FR778931A (en) 1934-09-26 1934-09-26 Methods and devices for determining the positions of a mobile, in particular an airplane or a ship

Country Status (1)

Country Link
FR (1) FR778931A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412375A (en) * 1966-09-16 1968-11-19 Gen Electric Doppler shift aircraft landing aid and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412375A (en) * 1966-09-16 1968-11-19 Gen Electric Doppler shift aircraft landing aid and method

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