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Structure Detection of Transmission Frame Based on Accumulated Correlation for DVB-S2 System  

Jeon, Hanik (과학기술연합대학원대학교 이동통신 및 디지털방송공학과)
Oh, Deock-Gil (한국전자통신연구원 위성광대역방송통신 연구실)
Publication Information
Journal of Satellite, Information and Communications / v.10, no.2, 2015 , pp. 109-114 More about this Journal
Abstract
Frame synchronization is achieved by correlation between received symbols and a preamble pattern which is periodically appended at a frame header. In this paper, we deal with a frame detection method complaint with satellite-based DVB-S2 system. In DVB-S2, frame synchronization is performed under the low signal-to-noise ratio(SNR), a large frequency offset which can be up to 20% of a symbol transmission rate and unknown modulation schemes ranging from QPSK to 32-APSK. In this environment, we propose a method combining differential correlation based on SOF and PLSC with an accumulated correlation method for the detection of frame structures. In addition, detection performances about mean acquisition time(MAT) and detection error probability are evaluated via computer simulations.
Keywords
Frame synchronization; DVB-S2; satellite communication; structure detection; multi-frame detection;
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  • Reference
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