最大似然（ML）准则和最大后验概率（MAP）准则，是信号处理的基础，实现了对10个数字音的识别程序包括回归分析和概率统计，搭建OFDM通信系统的框架，各种kalman滤波器的设计。- Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Is the basis of the signal processing, Realization of 10 digital audio recognition program Including regression analysis and probability and statistics, Build a framework OFDM communication system, Various kalman filter design.