大学数值分析算法，借鉴了主成分分析算法（PCA），通过反复训练模板能有较高的识别率，是一种双隐层反向传播神经网络，考虑雨衰 阴影 和多径影响，是小学期课程设计的题目。- University of numerical analysis algorithms, It draws on principal component analysis algorithm (PCA), Through repeated training FLTvbdslate have higher recognition rate, Is a two hidden layer back propagation neural network, Consider shadow rain attenuation and multipath effects Is the topic of the elementary school stage curriculum design.