Spatio-temporal searcher for adaptive antenna systems

A spatio-temporal searcher structure is proposed to enhance the detection capability of the multipath searcher for the desired signal. This searcher employs the spatio-temporal signal structure to search for newly emerging signals. The proposed multipath searcher provides better detection capability and thus reduces the mean acquisition time. The detection and the false alarm probabilities of new and conventional searchers are calculated and numerical examples of a mean acquisition time are given thereafter.