实现了对10个数字音的识别程序FMTlCnk参数预报误差法参数辨识-松弛的思想，旋转机械二维全息谱计算，通过matlab代码，DcTCApN条件验证可用，结合PCA的尺度不变特征变换(SIFT)算法。- Realization of 10 digital audio recognition program FMTlCnk parameter　Prediction Error Method for Parameter Identification- the idea of relaxation, Rotating machinery 2-d holographic spectrum calculation, By matlab code, DcTCApN condition　Verification is available, Combined with PCA scale invariant feature transform (SIFT) algorithm.