FR2362458A1 - Procede et appareil de radionavigation - Google Patents

Procede et appareil de radionavigation

Info

Publication number
FR2362458A1
FR2362458A1 FR7625234A FR7625234A FR2362458A1 FR 2362458 A1 FR2362458 A1 FR 2362458A1 FR 7625234 A FR7625234 A FR 7625234A FR 7625234 A FR7625234 A FR 7625234A FR 2362458 A1 FR2362458 A1 FR 2362458A1
Authority
FR
France
Prior art keywords
beacons
sum
channel
fourier
navigation system
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
FR7625234A
Other languages
English (en)
Other versions
FR2362458B1 (fr
Inventor
Jacques Dorey
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 FR7625234A priority Critical patent/FR2362458A1/fr
Publication of FR2362458A1 publication Critical patent/FR2362458A1/fr
Application granted granted Critical
Publication of FR2362458B1 publication Critical patent/FR2362458B1/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
    • 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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • 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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/10—Systems for determining distance or velocity not using reflection or reradiation using radio waves using Doppler effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radio Relay Systems (AREA)

Abstract

Procédé et appareil de radionavigation dans lequel on détermine, à bord d'un mobile, simultanément un facteur de positionnement angulaire et la distance de l'avion par rapport à un ensemble de deux balises comportant chacune une source mobile rectilinéairement, les sources mobiles des deux balises ayant à chaque instant des mouvements opposés et étant alimentées par deux ondes radioélectriques de fréquences voisines. Après avoir mis en évidence les fréquences de battements inférieures des signaux reçus de chacune des balises par multiplication suivie de filtrages, on multiplie entre eux les signaux de battements inférieurs obtenus, on filtre pour obtenir sur une voie la << différence >> des fréquences de battement et sur une autre voie la << somme >> des fréquences de battement et l'on effectue sur la voie << différence >> une corrélation de Fourier et sur la voie << somme >> une corrélation de Fresnel. Application : navigation aérienne.
FR7625234A 1976-08-19 1976-08-19 Procede et appareil de radionavigation Granted FR2362458A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7625234A FR2362458A1 (fr) 1976-08-19 1976-08-19 Procede et appareil de radionavigation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7625234A FR2362458A1 (fr) 1976-08-19 1976-08-19 Procede et appareil de radionavigation

Publications (2)

Publication Number Publication Date
FR2362458A1 true FR2362458A1 (fr) 1978-03-17
FR2362458B1 FR2362458B1 (fr) 1982-08-06

Family

ID=9177011

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625234A Granted FR2362458A1 (fr) 1976-08-19 1976-08-19 Procede et appareil de radionavigation

Country Status (1)

Country Link
FR (1) FR2362458A1 (fr)

Also Published As

Publication number Publication date
FR2362458B1 (fr) 1982-08-06

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Legal Events

Date Code Title Description
ST Notification of lapse