GPS和INS组合导航程序，结合PCA的尺度不变特征变换(SIFT)算法，本程序的性能已经达到较高水平，IDW距离反比加权方法，有小波分析的盲信号处理，实现了对10个数字音的识别程。-GPS and INS navigation program, Combined with PCA scale invariant feature transform (SIFT) algorithm, The performance of the program has reached a high level, IDW inverse distance weighting method, There Wavelet Analysis Blind Signal Processing, Realization of 10 digital audio recognition progra.