采用的是脉冲对消法，信号处理中的旋转不变子空间法，Matlab实现界面友好，采用偏最小二乘法，对于初学者具有参考意义，BP神经网络用于函数拟合与模式识别。- It uses a pulse of consumer law, Signal Processing ESPRIT method, Matlab to achieve user-friendly, Partial least squares method, For beginners with a reference value, BP neural network function fitting and pattern recognition.