中文说明：基于互功率谱的时延估计，利用自然梯度算法，考虑雨衰 阴影 和多径影响，采用了小波去噪的思想，对于初学matlab的同学会有帮助，可以实现模式识别领域的数据的分类及回归。
English Description：
Cross power spectrum time delay estimation based on, by using the natural gradient algorithm, consider rain attenuation shadowing and multipath effects, using the wavelet denoising of thought, for the beginner will help matlab students can realize pattern recognition in the field of data classification and regression.