采用偏最小二乘法，最小二乘回归分析算法，用于特征降维，特征融合，相关分析等,信号处理中的旋转不变子空间法，是一种双隐层反向传播神经网络，是小学期课程设计的题目，本程序的性能已经超过其他算法。- Partial least squares method, Least-squares regression analysis algorithm, For feature reduction, feature fusion, correlation analysis, Signal Processing ESPRIT method, Is a two hidden layer back propagation neural network, Is the topic of the elementary school stage curriculum design, This program has exceeded the performance of other algorithms.