多径信道OFDM系统的盲前馈频偏估计

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI:10.1109/SPAWC.2006.346381

T. Fusco, M. Tanda

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引用次数: 1

摘要

研究了多径信道下正交频分复用(OFDM)系统的盲前馈载波频偏估计问题。具体地说，通过利用最小二乘方法，得到了一个闭式盲CFO估计量。所提出的算法不需要了解信道脉冲响应和/或虚拟子载波的插入。计算机仿真结果表明，所提出的CFO估计器优于以往提出的盲CFO同步算法

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A Blind Feedforward Frequency Offset Estimator for OFDM Systems in Multipath Channels

In this paper we consider the problem of blind feedforward carrier-frequency offset (CFO) estimation for orthogonal frequency division multiplexing (OFDM) systems in multipath channels. Specifically, by exploiting the least-squares approach a closed-form blind CFO estimator is derived. The proposed algorithm does not require the knowledge of the channel impulse response and/or the insertion of virtual subcarriers. Computer simulation results show that the derived CFO estimator can outperform previously proposed blind CFO synchronization algorithms

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来源期刊

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications

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