Research on synchronization technique of the DRM system

Wen-fei Guo; Jian-sheng Zheng; Wen Cheng; Fan Su

doi:10.1117/12.913535

1 October 2011 Research on synchronization technique of the DRM system

Wen-fei Guo, Jian-sheng Zheng, Wen Cheng, Fan Su

Proceedings Volume 8285, International Conference on Graphic and Image Processing (ICGIP 2011); 82857P (2011) https://doi.org/10.1117/12.913535
Event: 2011 International Conference on Graphic and Image Processing, 2011, Cairo, Egypt

Abstract

To deal with the degradation of the synchronization performance in low SNR condition, a novel DRM (Digital Radio Mondiale) synchronization algorithm is proposed. The proposed algorithm employs cyclic prefix for timing synchronization and fractional frequency offset estimation like conventional methods, but accomplishes frame synchronization and integer frequency offset estimation using time pilot cells and differential coding technologies, which are designed specially for the DRM system. After channel estimation and equalization, frequency pilot cells are used to estimate residue fractional frequency offset and subsequent sample offset as well as fixed phase offset to achieve complete synchronization. Simulation results show that the proposed algorithm can possesses better time and frequency synchronization performance than the conventional method in the multi-path fading channel with low SNR condition.

Citation Download Citation

Wen-fei Guo, Jian-sheng Zheng, Wen Cheng, and Fan Su "Research on synchronization technique of the DRM system", Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 82857P (1 October 2011); https://doi.org/10.1117/12.913535

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