| 宽带快衰落MIMO信道中高斯插值算法研究 |
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| 引用本文： | 王阶,汪利辉,龚耀寰.宽带快衰落MIMO信道中高斯插值算法研究[J].实验科学与技术,2006,4(1):8-11. |
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| 作者姓名： | 王阶 汪利辉 龚耀寰 |
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| 作者单位： | 电子科技大学,成都,610054 |
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| 基金项目： | 国防科技重点实验室基金;电子科技大学校科研和校改项目 |
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| 摘 要： | 对时变多输入多输出（MIMO）信道的估计和跟踪是实现MIMO系统接收端准确检测、解码等的前提。将低阶高斯插值算法应用于宽带Rayleigh快衰落MIMO信道，对其快速变化实现估计，与采用信道跟踪相比，该方案算法复杂度低，且易于实现。同时对该算法进行了仿真，分析了影响算法性能的主要因素。仿真和分析表明，高斯插值估计算法与单纯的最小二乘相比可以较好地反映快衰落信道的变化，较大地降低系统的估计误差，改善系统的性能。
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| 关 键 词： | 多输入多输出 信道估计 高斯插值 |
| 文章编号： | 1672-4550（2006）01-0008-04 |
| 收稿时间： | 2005-04-04 |
| 修稿时间： | 2005年4月4日 |
Analysis of Gaussian Interpolation in Broadband Rapid Fading MIMO Channel |
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| Wang Jie,Wang Lihui,Gong Yaohuan.Analysis of Gaussian Interpolation in Broadband Rapid Fading MIMO Channel[J].Experiment Science & Technology,2006,4(1):8-11. |
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| Authors: | Wang Jie Wang Lihui Gong Yaohuan |
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| Institution: | University of Electronic Science and Technology of China Chengdu 610054 |
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| Abstract: | Channel estimation and tracking in time - varying MIMO wireless communication systems play a key role in detecting, decoding and recovering the transmitted information at receiver side. Channel estimation scheme based on Low -order Gaussian interpolations, which is applied to fading MIMO channel, is presented in this paper. Compared with traditional channel tracking schemes, the computation complexity of the scheme is low and can be easily realized. The scheme is simulated and the main factors affecting the algorithm performance are analyzed. Simulation results demonstrate that the proposed scheme can estimate the time varying channel effectively, decrease the estimation error and improve the system performance, in comparison with LS estimation scheme. |
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| Keywords: | MIMO channel estimation gaussian interpolation |
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