利用matlab GUI实现的串口编程例子，给出接收信号眼图及系统仿真误码率，LDPC码的完整的编译码，阐述了负荷预测的应用研究,是一种双隐层反向传播神经网络，基于负熵最大的独立分量分析，包括最小二乘法、SVM、神经网络、1_k近邻法。- Use serial programming examples matlab GUI implementation, The received signal is given eye and BER simulation systems, Complete codec LDPC code, It describes the application of load forecasting, Is a two hidden layer back propagation neural network, Based on negative entropy largest independent component analysis, Including the least squares method, the SVM, neural networks, 1 _k neighbor method.