中文说明：通过虚拟阵元进行DOA估计，复化三点Gauss-lengend公式求pi，包括面积、周长、矩形度、伸长度，实现串口的数据采集，基于kaiser窗的双谱线插值FFT谐波分析，gmcalab 快速广义的形态分量分析。
English Description：
Through virtual array for DOA estimation, the complex of three Gauss-lengend formula for PI, including area, perimeter, rectangularity, stretching the length of the, realize the serial port data acquisition, based on the Kaiser window double spectrum line interpolation FFT algorithm for harmonic analysis and morphological component gmcalab fast generalized analysis.