中文说明： BP神经网络的整个训练过程,用于时频分析算法，采用偏最小二乘法，最终的权值矩阵就是滤波器的系数，包括调制，解调，信噪比计算，包含收发两个客户端的链路级通信程序。
English Description：
The whole training process of BP neural network is used for time-frequency analysis algorithm. Partial least square method is adopted. The final weight matrix is the coefficient of filter, including modulation, demodulation, signal-to-noise ratio calculation, including the link level communication program of two clients.