中文说明：基于互功率谱的时延估计，是本科毕设的题目，包括最小二乘法、SVM、神经网络、1_k近邻法,有详细的注释，包含优化类的几个简单示例程序，有循环检测，周期性检测。
English Description：
Based on the cross power spectrum of the time delay estimation is undergraduate graduation design topic, including the least squares method, SVM, neural network, 1 K nearest neighbor method, detailed notes, including optimization of several simple example program, there are cycle detection, periodic testing.