This paper presents a new Improved-MUSIC (I-MUSIC) algorithm to solve the problem of precise direction of arrival detection. It is based on the actual MUSIC algorithm that has been modified in order to improve the resolution of the Direction of Arrival (DOA). The actual MUSIC algorithm suffers from power function that will reduce the resolution accuracy. For that reason, the I-MUSIC has been proposed by ignoring the covariance steering vector. The results show that this algorithm can give a

more »

... resolution even though the wireless system is operating under a very low Signal to Noise Ratio (SNR). Statistical comparisons with other algorithms (MUSIC, MUSIC-Like and MI-MUSIC) show that the I-MUSIC has the best performance.