【摘要】 MIMO-OFDM系统接收端信号检测算法的研究对MIMO系统性能的提高起着重要作用。设计一个复杂度低且检测性能相对较好的检测算法是MIMO技术的一个重要分支。介绍了垂直分层空时结构中的几种典型检测算法,分析了其优缺点,在基本QR分解算法的基础上提出了2种改进的QR算法。通过MATLAB仿真观察,改进的算法在保证检测性能良好的同时降低了算法复杂度。更多还原

【Abstract】 The study on the receiver signal detection algorithm for MIMO-OFDM system is very important to improve the performance of MIMO system. The design of a detection algorithm with low complexity and better performance is an important branch of MIMO technology. This paper introduces several typical detection algorithms in V-BLAST structure and analyzes their advantages and disadvantages. Two improved QR algorithms are proposed on the basis of QR decomposition algorithm. The results of simulation by MATLAB show that the improved algorithm can not only reduce the complexity of the algorithm but also ensure the good detection performance.更多还原