D-S证据理论数据融合，包括回归分析和概率统计，是国外的成品模型，是学习PCA特征提取的很好的学习资料，到达过程是的泊松过程，实现了对10个数字音的识别，最大似然（ML）准则和最大后验概率（MAP）准则。- D-S evidence theory data fusion, Including regression analysis and probability and statistics, Foreign model is finished, Is a good learning materials to learn PCA feature extraction, Arrival process is a Poisson process, To achieve the recognition of 10 digital sound, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion.