The influence of tracking divergence angle on far-field light correlation in optical communication

It is very critical to improve the tracking stability in inter-satellites optical communication. The definition of the far-field light correlation efficient as been proposed, and the mathematical model that between it and divergence angle of tracking beacon has been established due to correlation of bidirectional beams. The results showed that the light intensity in the far-field is decreasing and dispersing with an increasing divergence angle, but not has an increasing far-field light correlation.

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