Optical adaptive linear predictors

Abstract

Adaptive linear predictors have found important application in channel equalization, source redundancy removal, speech encoding and analysis, interference and noise rejection, signal classification, adaptive control, and adaptive antenna systems. In an effort to provide adaptive linear predictors of wide bandwidth, several optical implementations have been proposed. This paper reviews and analyzes the existing optical architectures, putting them in a common framework. Four new common-path architectures are proposed and compared with the others.