结合PCA的尺度不变特征变换(SIFT)算法，快速扩展随机生成树算法，包括调制，解调，信噪比计算，GPS和INS组合导航程序，用于信号特征提取、信号消噪，是国外的成品模型。-Combined with PCA scale invariant feature transform (SIFT) algorithm, Rapid expansion of random spanning tree algorithm, Includes the modulation, demodulation, signal to noise ratio calculation, GPS and INS navigation program, For feature extraction, signal de-noising, Foreign model is finished.