sar图像去噪的几种新的方法，对信号进行频谱分析及滤波，计算多重分形非趋势波动分析。- Several new methods sar image denoising, The signal spectral analysis and filtering, Calculate the multifractal trend fluctuation analysis.

BP neural network function fitting and pattern recognition, Synthetic Aperture Radar (SAR) imaging simulation target, music higher order spectral analysis algorithm.