Mathematics – Probability
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1059...72w&link_type=abstract
IN: Space sensing, communications, and networking; Proceedings of the Meeting, Los Angeles, CA, Jan. 16-18, 1989 (A90-31926 13-1
Mathematics
Probability
Optical Communication, Position Errors, Pulse Position Modulation, Satellite Communication, Satellite-To-Satellite Tracking, Avalanche Diodes, Line Of Sight, Parameterization, Photodiodes, Satellite Networks
Scientific paper
An approach to the selection of the optimal system parameters to minimize the signal power on optical PPM communication is presented. Given the tracking error statistics at each end of the link, and the desired probability of bit error rate (PBE), the combination of optical apertures is found that minimizes the required laser power. The product of optical apertures and the RMS tracking error, and the ratio of the required laser power and the RMS tracking error, are found to be constants, independent of the actual RMS tracking error for fixed PBE and static pointing error. It is found that required signal power associated with the double-ended tracking system is about 50 percent higher than that required for tracking systems which model only single-ended pointing errors. It is suggested that in order to meet the size and weight constraint of the optical package and the requirement of the transmitting laser, suboptimal designs may be necessary for ISL applications.
Gagliardi Robert M.
Wei Ta-Shun
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