Direction of arrival estimation techniques using uniform circular array

Abstract

This paper discusses the application of a preprocessing discrete Fourier transform (DFT) based technique for uniform circular arrays in direction of arrival (DOA) estimation problems of wideband coherent sources. Simulation results, that illustrate the performance of the rotational signal subspace (RSS) and spatial smoothing (SS) techniques in conjunction with the MUSIC algorithm, in the case of two wideband coherent sources, are included.