Time Integrating Optical Correlator for Adaptive Array Processing.

摘要

Application of optical signal processing techniques to adaptive array processing was investigated. The common adaptive array algorithms were reviewed. Adaptive array processing generally requires some form of correlation and the characterisitics of optical correlators were compared leading to the selection of the time integrating optical correlator for further investigation. An adaptive array processor using time integrating optical correlators, which was first proposed by David Casasent, was analyzed to determine applicability of this signal processing technique to a general adaptive array environment. This processor was found to be similar to a comparable maximum likelihood approach. Limitations on the performance of this processor in terms of ambiguity and resolution were found and these results were confirmed by computer simulation of the adaptive array environment, the processor, and the resulting antenna response. (Author)