| 摘要 |
An optical communication system and methods are disclosed wherein the receiving source uses an array sensor to recover data from a transmitted opt ical beam and to evaluate alignment accuracy with the transmitted beam. The array sensor uses the principles of geometric invariance to determine the accuracy of alignment. The sensor may relay the recovered information to a system controller or other suitable device, which can then reposition the receiver so that it is prop erly aligned with the transmitter. The system and methods advantageously provide for a more compact and robust communication system wherein a single receiving element can be used for both data recovery and alignment evaluation functions.
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