A Blind Estimation Algorithm of Synchronization Parameter for OFDM Signals Based on Auto-correlation Matrix

Wang Qing; Ge Lin-dong; Gong Ke-xian

doi:10.3724/SP.J.1146.2006.01114

Volume 30 Issue 2

Jan. 2011

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Article Navigation > Journal of Electronics & Information Technology > 2008 > 30(2): 383-387

Wang Qing, Ge Lin-dong, Gong Ke-xian. A Blind Estimation Algorithm of Synchronization Parameter for OFDM Signals Based on Auto-correlation Matrix[J]. Journal of Electronics & Information Technology, 2008, 30(2): 383-387. doi: 10.3724/SP.J.1146.2006.01114

Citation:

Wang Qing, Ge Lin-dong, Gong Ke-xian. A Blind Estimation Algorithm of Synchronization Parameter for OFDM Signals Based on Auto-correlation Matrix[J]. Journal of Electronics & Information Technology, 2008, 30(2): 383-387. doi: 10.3724/SP.J.1146.2006.01114

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A Blind Estimation Algorithm of Synchronization Parameter for OFDM Signals Based on Auto-correlation Matrix

doi: 10.3724/SP.J.1146.2006.01114

Received Date: 2006-07-28
Rev Recd Date: 2006-12-27
Publish Date: 2008-02-19

Abstract

Abstract

An algorithm using auto-correlation matrix of received data for OFDM timing and carrier frequency offset estimation is presented in this paper. The algorithm does not need training data. Fractional frequency offset tracking and frame synchronization are implemented by minimizing the modular sum of off-diagonal elements and diagonal elements whose position is corresponding to virtual carriers number respectively. Integral frequency offset is estimated exactly based on the position movements of diagonal elements. Mathematical derivation is also provided in the paper. The simulation results show that the proposed algorithm has a large estimation range and a high resolution.

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References(1)

References

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