Bidirectional Smoothing MUSIC Algorithm

Based on our research findings, the bidirectional spatial smoothing decorrelation MUSIC algorithm not only solves the coherence limitation inherent in classical MUSIC algorithms but also maintains full array aperture without degradation. In this study, we focus on performance analysis of the bidirectional spatial smoothing decorrelation MUSIC algorithm and conduct comprehensive MATLAB simulations and evaluations under different operational conditions. The implementation involves partitioning the array into overlapping subarrays for forward and backward smoothing, followed by covariance matrix averaging and MUSIC spectrum computation through eigenvalue decomposition. We further investigate the algorithm's underlying principles and mechanisms through detailed code implementation that includes steering vector generation, spatial spectrum estimation, and peak detection routines. These investigations provide deeper insights into the algorithm's advantages and limitations, offering valuable references and guidance for future research directions in array signal processing.