Direction finding using MUSIC algorithm with spatial smoothing processing followed by digital beamforming

摘要

In this report, a method of estimating the Direction-Of-Arrival (DOA) using a few snapshots is proposed in the case where incidence waves have strong correlation mutually with low Signal-to-Noise Ratio (SNR). The proposed method improves the accuracy of the DOA estimation by improving SNR with spatial smoothing processing followed by digital beamforming. We also clarify by some simulations that the accuracy of the DOA estimation is significantly improved by means of the proposed method.