FR3075521B1 - COMMUNICATION SYSTEM COMPRISING AN ARTIFICIAL STAR COMPENSATION DEVICE - Google Patents

COMMUNICATION SYSTEM COMPRISING AN ARTIFICIAL STAR COMPENSATION DEVICE Download PDF

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Publication number
FR3075521B1
FR3075521B1 FR1701326A FR1701326A FR3075521B1 FR 3075521 B1 FR3075521 B1 FR 3075521B1 FR 1701326 A FR1701326 A FR 1701326A FR 1701326 A FR1701326 A FR 1701326A FR 3075521 B1 FR3075521 B1 FR 3075521B1
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France
Prior art keywords
deformation
artificial star
wavefront
optical signal
moving object
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Active
Application number
FR1701326A
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French (fr)
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FR3075521A1 (en
Inventor
Arnaud LE KERNEC
Michel Sotom
Walter Zoccarato
Arnaud Viera
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Thales SA
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Thales SA
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Priority to FR1701326A priority Critical patent/FR3075521B1/en
Publication of FR3075521A1 publication Critical patent/FR3075521A1/en
Application granted granted Critical
Publication of FR3075521B1 publication Critical patent/FR3075521B1/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/118—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum specially adapted for satellite communication

Abstract

Le domaine général de l'invention est celui des systèmes de communication optique à travers l'atmosphère entre une station (1) et un objet mobile (2), l'atmosphère comportant des turbulences, ladite station comprenant un dispositif d'émission (17) d'un signal optique, un système d'acquisition (13) d'une première direction dudit objet mobile à l'instant présent et un calculateur d'une seconde direction dudit objet mobile à un instant du futur correspondant à la réception du signal optique par l'objet. Dans le système selon l'invention, la station comporte un système de pointage (20) d'une étoile artificielle (S) dans la seconde direction, un dispositif d'analyse (14) d'un premier front d'onde émis par ladite étoile artificielle, un processeur électronique (15) agencé pour calculer une déformation d'un second front d'onde de compensation à partir de la connaissance du premier front d'onde et une optique adaptative (16) appliquant ladite déformation audit signal optique d'émission, ladite déformation étant telle que le signal optique est reçu correctement par l'objet mobile.The general field of the invention is that of optical communication systems through the atmosphere between a station (1) and a moving object (2), the atmosphere comprising turbulences, said station comprising a transmission device (17 ) of an optical signal, a system (13) for acquiring a first direction of said moving object at the present time and a computer for a second direction of said moving object at a time in the future corresponding to the reception of the signal optics by the object. In the system according to the invention, the station comprises a system for pointing (20) an artificial star (S) in the second direction, a device for analyzing (14) a first wavefront emitted by said artificial star, an electronic processor (15) arranged to calculate a deformation of a second compensation wavefront from knowledge of the first wavefront and an adaptive optics (16) applying said deformation to said optical signal transmission, said deformation being such that the optical signal is correctly received by the mobile object.

FR1701326A 2017-12-19 2017-12-19 COMMUNICATION SYSTEM COMPRISING AN ARTIFICIAL STAR COMPENSATION DEVICE Active FR3075521B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1701326A FR3075521B1 (en) 2017-12-19 2017-12-19 COMMUNICATION SYSTEM COMPRISING AN ARTIFICIAL STAR COMPENSATION DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1701326A FR3075521B1 (en) 2017-12-19 2017-12-19 COMMUNICATION SYSTEM COMPRISING AN ARTIFICIAL STAR COMPENSATION DEVICE
FR1701326 2017-12-19

Publications (2)

Publication Number Publication Date
FR3075521A1 FR3075521A1 (en) 2019-06-21
FR3075521B1 true FR3075521B1 (en) 2019-12-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR1701326A Active FR3075521B1 (en) 2017-12-19 2017-12-19 COMMUNICATION SYSTEM COMPRISING AN ARTIFICIAL STAR COMPENSATION DEVICE

Country Status (1)

Country Link
FR (1) FR3075521B1 (en)

Also Published As

Publication number Publication date
FR3075521A1 (en) 2019-06-21

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