一种STTC空时编码识别方法研究

Research on Blind Identification of Space-time Trellis Coding

由于MIMO无线通信体制采用多发射天线,多路混合信号对于非合作方在空时编码类型识别时造成困难。在对STTC机理进行深入研究基础上,结合其编码的特点,提出了一种基于符号编码矩阵统计的STTC识别方法,通过在Matlab仿真环境下对STTC、STBC、BLAST三种空时编码矩阵重构后进行概率统计。仿真结果表明,基于符号编码矩阵的概率重构分析方法可实现对STTC进行有效识别。

Due to multiple transmit antennas used in MIMO wireless communication system, it is difficult for non-partners to identify space-time coded type when receiving multichannel mixed signal. The paper puts forward a statistical method on symbolic coding matrix on the basis of studying the space-time trellis coded （STTC） mechanism and characteristics. The method can realize the identification of the space-time trellis coding type of MIMO wireless communication. Besides, simulation experiment is carried out for three kinds of space-time coding recognition called STTC, STBC, BLAST using MATLAB. Thus, the statistics result of symbolic coding matrix can realize recognition of space-time trellis coding for MIMO system effectively.