实现了对10个数字音的识别程序是学习PCA特征提取的很好的学习资料，最大似然（ML）准则和最大后验概率（MAP）准则，多目标跟踪的粒子滤波器，数学方法是部分子空间法，时间序列数据分析中的梅林变换工具。-Realization of 10 digital audio recognition program Is a good learning materials to learn PCA feature extraction, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Multi-target tracking particle filter, Mathematics is part of the subspace, Time series data analysis Mellin transform tool.