Spread spectrum code phase acquisition using a cyclic accumulation matched filter

Abstract

Direct sequence spread spectrum code phase acquisition schemes have been proposed which use cyclic accumulation and a matched filter to provide a rapid estimate of the correct code phase. Transition probabilities have been evaluated by using computer simulation and mean acquisition times were determined using a system model. Comparisons of mean acquisition time for six schemes have made. Results indicate that the proposed schemes will achieve much better acquisition time performance than previously reported methods.