中文说明：通过虚拟阵元进行DOA估计，相控阵天线的方向图（切比雪夫加权），基于kaiser窗的双谱线插值FFT谐波分析，实现了对10个数字音的识别，旋转机械二维全息谱计算，通过matlab代码。
English Description：
DOA estimation is carried out by virtual array, phased array antenna directional diagram (Chebyshev weighted), based on Kaiser window double spectrum line interpolation FFT algorithm for harmonic analysis, the realization of the identification of 10 digital audio, rotating machinery two-dimensional holographic spectrum calculation, through the matlab code.