计算多重分形非趋势波动分析，应用小区域方差对比，程序简单，BP神经网络用于函数拟合与模式识别，信号维数的估计，考虑雨衰 阴影 和多径影响，包含特征值与特征向量的提取、训练样本以及最后的识别。- Calculate the multifractal trend fluctuation analysis, Application of small area variance comparison, simple procedures, BP neural network function fitting and pattern recognition, Signal dimension estimates, Consider shadow rain attenuation and multipath effects Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition.