| 一种改进的TD-SCDMA系统信道估计算法 |
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| 引用本文： | 韩东升,季飞,李鹏.一种改进的TD-SCDMA系统信道估计算法[J].科学技术与工程,2007,7(23):6045-60496054. |
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| 作者姓名： | 韩东升 季飞 李鹏 |
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| 作者单位： | 1. 华南理工大学电子与信息学院,广州,514640
2. 中国石油大学计算机与通信工程学院,青岛,266555 |
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| 基金项目： | 国家自然科学基金(60672065)资助 |
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| 摘 要： | TD-SCDMA系统中普遍采用的B.Steiner信道估计算法是一种低代价算法,但是由于背景噪声的影响,其信道冲激响应的幅度和时延相对于真实值存在误差,降低系统性能。在B.Steiner算法的基础上提出了一种门限后处理方法,减少噪声影响。仿真结果表明,这种方法可以在不增加算法复杂度的情况下获得较好的系统性能。
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| 关 键 词： | TD-SCDMA 信道估计 门限处理 |
| 文章编号： | 1671-1819(2007)23-6045-06 |
| 修稿时间： | 2007-06-27 |
New Improved Channel Estimation Algorithm in TD-SCDMA System |
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| HAN Dong-sheng,JI Fei,LI Peng.New Improved Channel Estimation Algorithm in TD-SCDMA System[J].Science Technology and Engineering,2007,7(23):6045-60496054. |
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| Authors: | HAN Dong-sheng JI Fei LI Peng |
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| Institution: | School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, P. R. China; School of Computer and Telecommunication Engineering, University of Petroleum China , Qingdao 266555, P. R. China |
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| Abstract: | B.Steiner channel estimation algorithm that is widely used in TD-SCDMA system is a low-cost algorithm. However, because of the affection of background noise , there are some errors of amplitudes and delays between the estimated implues responses and the real ones, which result in bad system performance. A gate method base on B. Steiner algorithm to reduce the affection of the noise is proposed. The simulation results show that this method is able to get a good performance without causing more algrithm complication. |
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| Keywords: | TD-SCDMA channel estimation gate process |
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