中文说明： 解耦，恢复原信号，是学习PCA特征提取的很好的学习资料，是小学期课程设计的题目，微分方程组数值解方法，算法优化非常好，几乎没有循环，有循环检测，周期性检测。
English Description：
Decoupling of signal recovery, PCA is learning good study material feature extraction, is a semester course design for small topics, numerical solution of differential equations, algorithms very well, almost no loops, loop detection, periodic testing.