FR2282645A1 - Radio position finding on aircraft w.r.t. beacon - using phase variation from fixed and rotating antennae on beacon - Google Patents

Radio position finding on aircraft w.r.t. beacon - using phase variation from fixed and rotating antennae on beacon

Info

Publication number
FR2282645A1
FR2282645A1 FR7428557A FR7428557A FR2282645A1 FR 2282645 A1 FR2282645 A1 FR 2282645A1 FR 7428557 A FR7428557 A FR 7428557A FR 7428557 A FR7428557 A FR 7428557A FR 2282645 A1 FR2282645 A1 FR 2282645A1
Authority
FR
France
Prior art keywords
beacon
aircraft
fixed
phase variation
position finding
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.)
Granted
Application number
FR7428557A
Other languages
French (fr)
Other versions
FR2282645B1 (en
Inventor
Jacques Zakheim
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR7428557A priority Critical patent/FR2282645A1/en
Publication of FR2282645A1 publication Critical patent/FR2282645A1/en
Application granted granted Critical
Publication of FR2282645B1 publication Critical patent/FR2282645B1/fr
Granted 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

In order to determine the angular position of the aircraft w.r.t. a reference direction passing through the beacon, the phase variation is measured between the energy radiated by a rotating antenna (A1) on the beacon and the energy radiated by a fixed antenna (Ao) on the beacon positioned at the centre of rotation of the rotating antenna (A1). A phase modulation is introduced into the energy radiated by the fixed antenna (Ao) as a function of the portion of the arm carrying the rotating antenna (A1) w.r.t. the reference direction.
FR7428557A 1974-08-20 1974-08-20 Radio position finding on aircraft w.r.t. beacon - using phase variation from fixed and rotating antennae on beacon Granted FR2282645A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7428557A FR2282645A1 (en) 1974-08-20 1974-08-20 Radio position finding on aircraft w.r.t. beacon - using phase variation from fixed and rotating antennae on beacon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7428557A FR2282645A1 (en) 1974-08-20 1974-08-20 Radio position finding on aircraft w.r.t. beacon - using phase variation from fixed and rotating antennae on beacon

Publications (2)

Publication Number Publication Date
FR2282645A1 true FR2282645A1 (en) 1976-03-19
FR2282645B1 FR2282645B1 (en) 1979-09-21

Family

ID=9142477

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7428557A Granted FR2282645A1 (en) 1974-08-20 1974-08-20 Radio position finding on aircraft w.r.t. beacon - using phase variation from fixed and rotating antennae on beacon

Country Status (1)

Country Link
FR (1) FR2282645A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490050A (en) * 1945-11-07 1949-12-06 Paul G Hansel Navigation system
FR1376102A (en) * 1962-11-29 1964-10-23 Int Standard Electric Corp Radio navigation system
US3778831A (en) * 1971-04-07 1973-12-11 N Marchand Compatible double precision doppler omnidirectional bearing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490050A (en) * 1945-11-07 1949-12-06 Paul G Hansel Navigation system
FR1376102A (en) * 1962-11-29 1964-10-23 Int Standard Electric Corp Radio navigation system
US3778831A (en) * 1971-04-07 1973-12-11 N Marchand Compatible double precision doppler omnidirectional bearing system

Also Published As

Publication number Publication date
FR2282645B1 (en) 1979-09-21

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Legal Events

Date Code Title Description
ST Notification of lapse