Date

March 1980

Document Type

Dissertation

Degree Name

Ph.D.

Department

Dept. of Applied Physics

Institution

Oregon Graduate Center

Abstract

Direct detection, photon counting receivers for use in optical communication through the clear air, turbulent atmosphere have been examined. In particular, spatial diversity arrays to overcome the effect off adding due to atmospheric turbulence are considered. Experimental results are compared with theoretical results for an optimum receiver structure based upon Bayes criterion of minimum probability of error. In addition, certain suboptimum receivers with simpler structures are derived directly from the optimum receiver. These receivers, along with an adaptive threshold receiver, are considered in order to examine the trade off between performance and complexity. The results indicate that the adaptive threshold receiver is a good compromise for information rates that are high with respect to scintillation frequencies, a relatively unrestrictive condition.

Identifier

doi:10.6083/M49Z92T8

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