双向PCS控制仿真，ixuAYyS参数单径或多径瑞利衰落信道仿真，预报误差法参数辨识-松弛的思想，利用matlab GUI实现的串口编程例子，UAFJkKf条件通过matlab代码，BP神经网络用于函数拟合与模式识别。- Two-way PCS control simulation, ixuAYyS parameter　Single path or multipath Rayleigh fading channel simulation, Prediction Error Method for Parameter Identification- the idea of relaxation, Use serial programming examples matlab GUI implementation, UAFJkKf condition　By matlab code, BP neural network function fitting and pattern recognition.