Non-data-aided Symbol Synchronization Algorithm for OFDM Systems

Hu, Dengpeng; Shi, Feng; Er-yang, Zhang

doi:10.3724/sp.j.1146.2010.00487

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Synchronization Algorithm1

Introduction Underwater1

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Cited by 3 publications

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“…According to time shift characteristic and phase shift characteristic of FRFT respectively in the formula (5) and (6), we can know that…”

Section: Synchronization Algorithmmentioning

confidence: 99%

See 1 more Smart Citation

A Precise Synchronization Scheme Using in the Underwater Acoustic Communication System Based on FRFT-OFDM

Huang¹,

Li²,

Zheng³

2014

IJSPS

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Synchronization is very important in underwater acoustic OFDM communication system based on the fractional Fourier transform (FRFT-OFDM). To improve the synchronization performance, a new way is proposed in this paper, which use symmetrical triangular linear frequency modulation (STLFM) signal as the preamble for the system. A scheme of the communication system based on FRFT-OFDM is given in this paper. The synchronization algorithm using STLFM signal as the preamble is discussed in detail. Theoretical analysis and simulation results show that the proposed synchronization method in optimal fractional Fourier domain can significantly improve the synchronization performance of system as compared to the traditional method.

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“…According to time shift characteristic and phase shift characteristic of FRFT respectively in the formula (5) and (6), we can know that…”

Section: Synchronization Algorithmmentioning

confidence: 99%

“…The methods described in [3], [4] require the information of the channel is less, but the operation is too large. The methods described in [5], [6] can overcome the computational complexity, but the estimation accuracy need to be improved.…”

Section: Introduction Underwatermentioning

confidence: 99%