中文说明： BP神经网络的整个训练过程,计算目标和海洋回波的功率谱密度,仿真图是速度、距离、幅度三维图像，关于非线性离散系统辨识，基于互功率谱的时延估计，独立成分分析算法降低原始数据噪声。
English Description：
BP neural network for the entire training process, target and sea echo Doppler power spectral density, the simulation speed, distance, three dimensional images, identification of nonlinear discrete-time systems based on cross power spectrum time delay estimation, independent component analysis algorithm to reduce the noise in the raw data.