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，均值便宜跟踪的示例，包括最小二乘法、SVM、神经网络、1_k近邻法,关于超声波倒车雷达测距的，考虑雨衰 阴影 和多径影响。
English Description：
Based on the cross power spectrum of the time delay estimation and common algorithm contains the array signal processing, the mean cheaper tracking example, including least squares method, SVM, neural network, 1 K nearest neighbor method, on the ultrasonic reversing radar ranging, considering the rain fading shadowing and multipath effects.