通信学报2017，Vol.38Issue(8)：94-100,7.DOI:10.11959/j.issn.1000-436x.2017167
DVB-T2系统基于前导符号的同步算法
Synchronization based on preamble symbol for DVB-T2 system
摘要
Abstract
DVB-T2 (digital video broadcasting-second generation terrestrial) system adopted a preamble,with a special C-A-B structure,to accomplish time-frequency synchronization.All existing preamble based synchronization algorithms only utilized the correlation between C and A or B and A,neglecting the conjugate symmetry character within A.By using this character,a new synchronization method was proposed to make detection probability higher and synchronization error smaller.Monto Carlo simulations were carried out in AWGN (addictive white Gaussian noise) channel and TU6 (typical urban) channel with velocity of 30 krn/h.Compared with existing synchronization methods,both higher detection probability and smaller mean square error in time-frequency synchronization is achieved.关键词
DVB-T2/前导符号/同步/共轭对称Key words
DVB-T2/preamble/synchronization/conjugate symmetry分类
信息技术与安全科学引用本文复制引用
唐杰,王芳,李明齐..DVB-T2系统基于前导符号的同步算法[J].通信学报,2017,38(8):94-100,7.基金项目
中科院战略性先导专项子课题基金资助项目(No.XDA06010301) （No.XDA06010301）
国家高技术研究发展计划(“863”计划)基金资助项目(No.2015AA01A709) （“863”计划）
上海市张江管委会专项基金资助项目(No.2016-14)Strategic Priority Research Program of Chinese Academy of Sciences (No.XDA06010301),The National High Technology Research and Development Program of China (863 Program) (No.2015AA01A709),Shanghai Zhangjiang Management Committee Project (No.2016-14) （No.2016-14）
