| 基于导频的信道估计算法的研究 |
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| 引用本文： | 王洪民,周冰. 基于导频的信道估计算法的研究[J]. 通信技术, 2011, 44(8): 29-32 |
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| 作者姓名： | 王洪民 周冰 |
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| 作者单位： | 1. 海军司令部通信部,北京610041;
2. 中国电子科技集团公司第三十研究所,四川成都,610041 |
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| 摘 要： | 为了解决在恶劣信道条件下,信道插值算法的性能与灵活性问题,给出一种应用于工程实现的三次样条插值的简便算法。通过对三次样条插值仿真算法和其它基于插值估计算法的仿真比较,结果表明：三次样条插值在对复杂信道的估计方面,与其它基于插值的估计算法相比,具有更好的性能;同时,它不需要导频等间隔,在工程应用中更具灵活性。另外还对基于导频的信道估计中常用的插值算法的性能、特点进行了系统的分析和比较。
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| 关 键 词： | 正交频分复用 信道估计 导频 插值算法 三次样条 |
Study on Pilot-based Channel Estimation Method for Wireless OFDM System |
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| WANG Hong-min,ZHOU Bing. Study on Pilot-based Channel Estimation Method for Wireless OFDM System[J]. Communications Technology, 2011, 44(8): 29-32 |
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| Authors: | WANG Hong-min ZHOU Bing |
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| Affiliation: | ②(①Communication Section of Navy Headquarters,Beijing 100141,China; ②The 30th Research Institute of CETC,Chengdu Sichuan 610041,China) |
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| Abstract: | A simple method of cubic spline interpolation for the application of project implementation is proposed.Simulation results indicate that the cubic spline interpolation is of fairly good flexibility and capability in estimating the complicated channel.Meanwhile,it requires no regular interval of the pilot,and this is beneficial to the flexible project application.Several channel estimation methods based on discrete pilots in wireless OFDM system are studied and analyzed,with emphasis on the comparision of th... |
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| Keywords: | OFDM channel estimation pilot interpolation method cubic spline |
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