BP神经网络用于函数拟合与模式识别，现代信号处理中谱估计在matlab中的使用，本程序的性能已经达到较高水平，搭建OFDM通信系统的框架，双向PCS控制仿真。- BP neural network function fitting and pattern recognition, Modern signal processing used in the spectral estimation in matlab, The performance of the program has reached a high level, Build a framework OFDM communication system, Two-way PCS control simulation.