pwm整流器的建模仿真，BP神经网络用于函数拟合与模式识别，相参脉冲串复调制信号，本科毕设要求参见标准测试模型，通过反复训练模板能有较高的识别率，复化三点Gauss-lengend公式求pi，MIMO OFDM matlab仿真,鲁棒性好，性能优越。- Modeling and simulation pwm rectifier BP neural network function fitting and pattern recognition, Complex modulation coherent pulse train signal, Undergraduate complete set requirements refer to the standard test models, Through repeated training nwPGHKblate have higher recognition rate, Complex of three-point Gauss-lengend the Formula pi, MIMO OFDM matlab simulation, Robustness, superior performance.