L-3 Communications Corporation

Theodore J Wolcott

Johnny M Harris

Richard B Ertel

Robert A Wright

A free space laser communication system uses subcarrier multiplexing to prepare multiple data communication channels for impressing onto a laser carrier. Sending and receiving terminals mutually track to insure acquisition of the transmitted data signals.

Airborne free space optical communication apparatus and method with subcarrier multiplexing

A system for despreading a spread spectrum signal includes at least one receiver for capturing a plurality of snapshots of the signal and a processing device for constructing a confidence vector from at least two of the plurality of snapshots. The processing device is operable to generate a first estimated spreading sequence of the signal, and to correlate the first estimated spreading sequence and the confidence vector to generate a second spreading sequence for despreading the signal.

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Palo Alto, CA, United States of America

Theodore J Wolcott