| 基于导频的OFDM系统信道估计 |
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| 引用本文： | 任巨涛,王华奎. 基于导频的OFDM系统信道估计[J]. 山西电子技术, 2009, 0(1): 45-47 |
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| 作者姓名： | 任巨涛 王华奎 |
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| 作者单位： | 太原理工大学信息工程学院,山西太原030024 |
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| 摘 要： | 正交频分复用（0FDM）是一种高效的数字传输技术，因其较高的频带利用率以及抗多径衰落的性能，被视为下一代无线通信的核心技术。信道估计是视线OFDM系统的关键技术之一。主要研究了OFDM无线通信系统中基于导频的信息估计算法——LS算法，MMSE算法以及改进的LS算法，并通过仿真算法的最小均方误差性能和误码率特性证明了改进的LS算法要优于LS算法。
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| 关 键 词： | 正交频分复用 信道估计 导频符号 最小平方算法 |
Estimation of OFDM Channel Based on Pilot |
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| Ren Ju-tao Wang Hua-kui. Estimation of OFDM Channel Based on Pilot[J]. Shanxi Electronic Technology, 2009, 0(1): 45-47 |
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| Authors: | Ren Ju-tao Wang Hua-kui |
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| Affiliation: | Ren Ju-tao Wang Hua-kui(Academe of Information and Engineering, Taiyuan University of Technology, Taiyaun Shanxi 030024, China) |
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| Abstract: | OFDM is a kind of transport technology with high efficiency, and for it＇s high performance in using frequency band and resisting multi-path fading, is regarded as the core technology of next-generation wireless communication systems. Channel estimation is the key technique for OFDM system. This paper presents the pilot-based channel estimation algorithms in OFDM systems. Simulation results indicate that the improved LS algorithm is more efficient than the LS algorithm. |
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| Keywords: | OFDM channel estimation pilot symbols LS |
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