到达过程是的泊松过程，有信道编码，调制，信道估计等，基于人工神经网络的常用数字信号调制，pwm整流器的建模仿真，具有丰富的参数选项,旋转机械二维全息谱计算。- Arrival process is a Poisson process, Channel coding, modulation, channel estimation, The commonly used digital signal modulation based on artificial neural network, Modeling and simulation pwm rectifier It has a wealth of parameter options, Rotating machinery 2-d holographic spectrum calculation.