Abstract：Because MUSIC (MUltiple SIgnal Classification) algorithm needs a large number of multiplications and trigonometric function evaluations, it is weak in the real time processing. This paper is aim at resolving above problem. Firstly, by analyzing the structural features of the uniform circular array and the uniform linear array, some properties of steering vector are extracted. Then, the properties of Hermite matrix are employed to decompose the complex multiplication, and then two real vectors are constructed to reduce the number of multiplications. Finally, with the properties of steering vector, a new algorithm based on look-up-table is proposed. The new algorithm neither has any trigonometric function evaluation, nor requires much memory space. The result of simulation experiments shows that the new algorithm raises the rate of MUSIC algorithm more than 50 times, while ensures the same estimated results. Therefore, the new algorithm has a wide application prospect.
张兴良, 王可人, 樊甫华. 典型阵列快速MUSIC 算法研究[J]. 雷达学报, 2012, 1(2): 149-156.
Zhang Xing-liang, Wang Ke-ren, Fan Fu-hua. Study on Fast MUSIC Algorithm with Typical Array. JOURNAL OF RADARS, 2012, 1(2): 149-156.
