Cooperative Stochastic Control for Optical Beam Tracking
Abstract
Description
Maintaining optical alignment between stations of a free-space optical link requires a persistent beam tracking operation. This is achieved using a position-sensitive photodetector at each station which measures the azimuth and elevation of tracking error. A pointing assembly adjusts the heading of transceivers according to measurement of the tracking error. The measurement at each receiver also depends on the pointing error of the opposite transmitter, therefore a cooperative beam tracking system can be regarded as two dynamically coupled subsystems. We developed a stochastic model for a cooperative beam tracking system to get insight into solution of an associated optimal control problem with goal of maximizing the flow of optical power between the stations.
15 pages, submitted to 41st Annual Conference on Information Sciences and Systems (CISS) 2007
15 pages, submitted to 41st Annual Conference on Information Sciences and Systems (CISS) 2007