Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1992-03-12
1994-01-25
Goldstein, Herbert
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359152, 359172, 356152, H04B 1000
Patent
active
052820734
ABSTRACT:
In a system of optical communications that can be used by air or space vehicles, each station comprises at least one optical system covering a half space, this system comprising two twinned optical devices to respectively form two distinct reception channels: a first reception optical channel for the initialization, in space, of the direction of communication; a second optical channel for the reception of the contents of the communication. One of the two optical devices is also used to form a transmission channel for the initialization and then for the communication in the direction of communication. The setting up of communication is done in three steps, respectively target designation, iterative bilateral acquisition and interstation communication.
REFERENCES:
patent: 3511998 (1970-05-01), Smokler
patent: 4279036 (1981-07-01), Pfund
patent: 4867560 (1989-09-01), Kunitsugu
patent: 4928317 (1990-05-01), Franchini
1985 IEEE Military Communications Conference, Milcom 85, vol. 1, Oct. 20, 1985, Boston, Mass., USA, pp. 94-97, W. A. Seaman, Jr., et al., "Free Space Laser Communication Terminals".
Coudrec Georges
Defour Martin
Fertala Remi
Grossmann Benoist
"Thomson-CSF"
Goldstein Herbert
Negash K.
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