实现串口的数据采集，能量熵的计算，有较好的参考价值，基于人工神经网络的常用数字信号调制，利用自然梯度算法，利用贝叶斯原理估计混合logit模型的参数。- Achieve serial data acquisition, Energy entropy calculation, There are good reference value, The commonly used digital signal modulation based on artificial neural network, Use of natural gradient algorithm, Bayesian parameter estimation principle mixed logit model.