... 本章小结(Chapter Summary) 导频和信道估计(Pilot and Channel Estimation) 变换域(Transform Domain) ...
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本文主要研究无线OFDM系统中的信道估计算法，包括基于导频辅助信道估计算法和信道盲估计算法。
This thesis mainly focuses on the algorithms for channel estimation in the wireless OFDM systems including pilot assisted channel estimation and channel blind estimation.
信道估计器通常分为两类：判决反馈估计器和导频符号辅助估计器。
Channel estimators are usually divided into two kind: decision-feedback estimator and pilot-aided estimator.
有一种直接基于DFT的信道估计方法利用均匀梳状分布的导频符号和离散傅立叶变换（DFT）完成信道估计。
The direct DFT based channel estimation method uses comb-type pilot symbol and discrete Fourier transform (DFT) to estimate the channel.
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