DOA Estimation for Coherent Signals

In this article, we present a program designed for estimating the direction of arrival (DOA) of coherent signals. While the MUSIC algorithm remains a popular choice for DOA estimation, it encounters limitations when dealing with coherent signal sources. Our implementation demonstrates alternative DOA estimation algorithms that effectively handle coherent signals, showcasing their performance characteristics through practical examples. The program includes matrix decomposition techniques and spatial smoothing methods to address correlation between signals. Through hands-on implementation, users can gain deeper understanding of DOA estimation principles and learn to process different signal types effectively. We provide comprehensive guidance on using this program for DOA estimation, including detailed configuration parameters, array geometry setup, and signal processing workflow. The demonstration features practical examples with code snippets showing covariance matrix computation, eigenvalue decomposition, and spectrum calculation functions to help users master DOA estimation skills efficiently.