匹配追踪和正交匹配追踪，利用贝叶斯原理估计混合logit模型的参数，用于信号特征提取、信号消噪，是信号处理的基础，MIMO OFDM matlab仿真,已调制信号计算其普相关密度，应用小区域方差对比，程序简单。- Matching Pursuit and orthogonal matching pursuit, Bayesian parameter estimation principle mixed logit model, For feature extraction, signal de-noising, Is the basis of the signal processing, MIMO OFDM matlab simulation, Modulated signals to calculate its density Pu-related, Application of small area variance comparison, simple procedures.