鲁棒性好，性能优越，计算多重分形非趋势波动分析，在matlab R2009b调试通过，重要参数的提取，实现了对10个数字音的识别，自己编的5种调制信号，有均匀线阵的CRB曲线，结合PCA的尺度不变特征变换(SIFT)算法。- Robustness, superior performance, Calculate the multifractal trend fluctuation analysis, In matlab R2009b debugging through, Extract important parameters, To achieve the recognition of 10 digital sound, Own five modulation signal, There ULA CRB curve, Combined with PCA scale invariant feature transform (SIFT) algorithm.