基于chebyshev的水声信号分析，IMC-PID是利用内模控制原理来对PID参数进行计算，预报误差法参数辨识-松弛的思想，采用偏最小二乘法，MIMO OFDM matlab仿真,从先验概率中采样，计算权重，基于人工神经网络的常用数字信号调制，使用混沌与分形分析的例程。- Based chebyshev underwater acoustic signal analysis, The IMC- PID is using the internal model control principle for PID parameters is calculated, Prediction Error Method for Parameter Identification- the idea of relaxation, Partial least squares method, MIMO OFDM matlab simulation, Sampling　a priori probability, calculate the weight, The commonly used digital signal modulation based on artificial neural network, Use Chaos and fractal analysis routines.