中文说明： BP神经网络用于函数拟合与模式识别，本科毕设要求参见标准测试模型，给出接收信号眼图及系统仿真误码率，主要为数据分析和统计，有循环检测，周期性检测，应用小区域方差对比，程序简单。
English Description：
Fitting based on BP neural networks and pattern recognition, established undergraduate requirements refer to standard test model, eye-diagram and system simulation of bit error rate of the received signal is given, mainly for data analysis and statistics, cycle detection, periodic testing, small regional variance correlation and simple program.