Abstract:

An improved DOA algorithm is proposed for the mixed signal model where independent signals and multipath signals coexist in the mobile communication environment based on the differential method and temporal smoothing principle.The algorithm increases the number of signal sources resolved and promotes the DOA estimation performance of coherent signals.Simulation results show that the algorithm has better performance in the mixed signal model than the traditional spatial smoothing method.

Key words: temporal smoothing;differential;multipath signals;mobile communication