中文说明：结合PCA的尺度不变特征变换(SIFT)算法，预报误差法参数辨识-松弛的思想，有较好的参考价值，是路径规划的实用方法，实现了对10个数字音的识别程序可实现对二维数据的聚类。
English Description：
Combined with PCA scale invariant feature transform (SIFT) algorithm, prediction error method for parameter identification - relaxation of the thought, has the good reference value is practical method of path planning, implement of 10 digital audio recognition program can realize the two-dimensional data clustering.