阵列信号处理算法，估计目标声源方向，空间谱估计基础和DOA估计模型，研究了DOA估计中的MUSIC算法，给出了MUSIC算法的原理和步骤程序包含常规波束搜索算法和MUSIC（多重信号分类）算法（在程序相应部分有说明）。两种方法都采用FFT算法来提高运算速度，简化程序编程（。-Array signal processing algorithms estimate the target sound source direction, spatial spectrum estimation and DOA estimation based model to study the MUSIC DOA estimation algorithm, gives the MUSIC algorithm principle and steps program includes conventional beam search algorithm and the MUSIC (multiple signal classification ) algorithm (the corresponding part of the program is described.) Both methods use the FFT algorithm to improve the computing speed and simplify programming (.