NPSK based DS-SS acquisition performance in presence of fast fading

This paper presents the theoretical analysis and the simulation results pertaining to the acquisition phase of the NPSK DS-SS system in the presence of noise and fast fading. A statistical approach is taken to accurately model the acquisition phase with fast fading. Using this statistical approach, the main performance criteria for the acquisition phase namely probabilities of detection and failure are derived analytically. The analytical derivation results are then compared to the simulation results with close agreement. It is found that the model developed is accurate in describing the behavior and performance of the acquisition phase in the presence of fast fading.