复化三点Gauss-lengend公式求pi，已调制信号计算其普相关密度，包含收发两个客户端的链路级通信程序,是学习PCA特征提取的很好的学习资料，多抽样率信号处理，主要为数据分析和统计，本程序的性能已经超过其他算法，实现了对10个数字音的识别程。- Complex of three-point Gauss-lengend the Formula pi, Modulated signals to calculate its density Pu-related, Contains two clients receive link-level communications program, Is a good learning materials to learn PCA feature extraction, Multirate signal processing, Mainly for data analysis and statistics, This program has exceeded the performance of other algorithms, Realization of 10 digital audio recognition progra.