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A Semi-blind Synchronization Algorithm Based on the Filtered Multitone System |
Liao Jia-chun Yao Dong-ping Ai Bo Liu Hong-peng |
State Key Lab of Rail Traffic Control & Safety, Beijing Jiaotong University, Beijing 100044, China |
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Abstract A new timing synchronous algorithm for Filtered MultiTone (FMT) system is proposed based on investigation for FMT character. The method achieved good performance with shorter train sequence for getting synchronous symbols by linking the correlation of the FMT symbols to the strong autocorrelation of PN sequence. Otherwise, a simple effective estimation for carrier frequency offset is introduced which is a integer multiple of sub-carrier spacing. The simulation results show that these two algorithms perform well in the additive Gaussian noise channel, and obtain a good estimate performance in the Doppler shift of the Rayleigh channel with diversity techniques.
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Received: 28 August 2012
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Corresponding Authors:
Liao Jia-chun
E-mail: 08211167@bjtu.edu.cn
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