A simple joint MUSIC-phase difference fitting DOA estimation method

The application of direction of arrival (DOA) estimation techniques has increased in the biomedical field such as human body condition detection and medical imaging. In this paper, a joint Multiple Signal Classification Algorithm (MUSIC)-phase difference fitting DOA estimation algorithm is proposed. Theoretical analysis and simulation results show that it requires low computational effort and provides excellent estimation accuracy when the signal-to-noise ratio (SNR) is high. The algorithm also has good estimation accuracy at low SNRs.