基于导频信道估计的MIMO同步算法  

Pilot Channel Estimation-based Algorithm of MIMO Synchronization

作　　者：崔金[1] 李署坚[1] 张彦[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191

出　　处：《信息安全与通信保密》2010年第12期86-88,共3页Information Security and Communications Privacy

摘　　要：针对多输入多输出(MIMO)技术的应用需要,研究了MIMO同步算法,提出了一种基于导频和信道估计的联合同步算法。该方法运用基于二阶矩的盲估计算法进行信道估计;再把信道估计的结果用最小均方误差准则做均衡,并设计一种特别的导频来估计载波频偏并估计信道时延。在不同条件下进行仿真,分析结果表明:在复杂信道环境下算法的性能相比传统算法有显著提高,研究结果对MIMO的工程应用有较好参考意义。With the application demand for Multiple Input Multiple Output technology,the MIMO synchronization algorithm is studied,and a synchronization algorithm based on the combination of channel estimation and pilot estimation is proposed.This method uses a second-order regulation-based blind channel estimation method for channel estimation,and the result of channel estimation is equalized with least MSR rule,and also a special pilot is designed to estimate the carrier frequency offset and channel delay.Finally,in different channel environments the simulation is done,and the results show that,under the complex channel environment,the proposed synchronization algorithm performs much better than traditional algorithm.This result could serve as a good reference for MIMO engineering.

关 键 词：多输入多输出 同步 载波频偏 时延 

分 类 号：TN919.3[电子电信—通信与信息系统]