Abstract:

A frequency domain model of DS-UWB array signals was derived .Then two DOA estimation methods using the frequency domain model were presented. One was based on the second–order statistic; the other was based on the fourth-order cumulant. Simulation results show that these methods are effective and the computation complexity of the former is much lower than that of the latter.

Key words: direction of arrival, second-order statistic, fourth-order cumulant