实现了对10个数字音的识别，微分方程组数值解方法，结合PCA的尺度不变特征变换(SIFT)算法，gmcalab 快速广义的形态分量分析，单径或多径瑞利衰落信道仿真，采用了小波去噪的思想，有PMUSIC 校正前和校正后的比较，计算加权加速度。- To achieve the recognition of 10 digital sound, Numerical solution of differential equations method, Combined with PCA scale invariant feature transform (SIFT) algorithm, gmcalab fast generalized form component analysis, Single path or multipath Rayleigh fading channel simulation, Using wavelet denoising thought, A relatively before correction and after correction PMUSIC, Weighted acceleration.