DOA estimation of a system using MUSIC method

Very accurate estimation of the signal direction of arrival (DOA) has received a tremendous interest in communication and radar systems for commercial and as well as for military applications. This paper proposes the implementation of finding direction of arrival of the signal to an array system using MUSIC (Multiple Signal Classification) algorithm. The solution includes finding general Eigen values and used Jacobi algorithm for the calculation of Eigen values and Eigen vectors, which uses rotation mode to realize Eigen value decomposition in order to reduce computations and finally achieves real time array direction finding. Performance estimation of music algorithm by varying number of antenna elements in an array is performed and Simulation results are obtained using MATLAB.