中文说明：给出接收信号眼图及系统仿真误码率，music高阶谱分析算法，BP神经网络用于函数拟合与模式识别，cordic算法的matlab仿真，数值分析的EULER法，随机调制信号下的模拟ppm。
English Description：
Eye-diagram and system simulation of bit error rate of the received signal is given, music high-order spectral analysis algorithms, function fitting based on BP neural networks and pattern recognition, cordic algorithm MATLAB simulation, numerical analysis of the EULER method, simulation of random modulation signal ppm.