The pointing system for optical data transmission over unguided channels uses a return beacon from the receiver back to the transmitter to aid the reciprocal alignment of the two stations. We concentrate on CW or pulsed-beacon acquisition with array detectors in the presence of extended clutter in addition to background and receiver noises. Acquisition in the presence of a single interferer (jammer) is also considered. A maximum likelihood (ML) approach is used when preliminary scene information is available. In the case of unknown scenario, a picture-picture subtraction algorithm is considered for the pulsed laser. Performance is evaluated in terms of probability of an acquisition error for Poisson statistics of the photodetector output.
Algorithms for Spatial Laser Beacon Acquisition
IEEE Transactions on Aerospace and Electronic Systems ; AES-22 , 2 ; 106-114
01.03.1986
1694061 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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