中文说明： 基于互功率谱的时延估计，包含了阵列信号处理的常见算法，MIMO OFDM matlab仿真,STM32制作的MP3的全部资料，窗函数法设计一个数字带通FIR滤波器，做视觉测量的上位机代码。
English Description：
Time delay estimation based on cross power spectrum, including the common array signal processing algorithm, MIMO OFDM matlab simulation, all the information of MP3 produced by STM32, window function method to design a digital band-pass FIR filter, the PC code for visual measurement.