Synchronization achieved under difficult, low-signal conditions. Synchronization scheme for pulse-position modulation (PPM) matches pulse, word, and frame timeslots of receiver to received signals to ensure proper identification of received pulses. Involves brief sequence of synchronizing pulses within each transmitted frame and relies on periodic repetition of synchronizing pulses for verification. Use of verification reduces number of synchronizing pulses required but increases time required to achieve synchronization.
Synchronization Scheme For PPM Communication
NASA Tech Briefs ; 12 , 6
1988-06-01
Miscellaneous
No indication
English
[synchronization of Optical Communication Systems]
NTRS | 1970
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European Patent Office | 2018
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