| 一种适用于恶劣信道的DVB-T同步系统 |
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| 引用本文： | 刘鹏,李兵兵,卢朝阳,宫丰奎.一种适用于恶劣信道的DVB-T同步系统[J].哈尔滨工业大学学报,2009(9):119-122. |
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| 作者姓名： | 刘鹏 李兵兵 卢朝阳 宫丰奎 |
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| 作者单位： | 西安电子科技大学ISN国家重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(60496316) |
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| 摘 要： | 为了适合恶劣信道环境,提出一种符合欧洲数字电视地面广播标准的正交频分复用同步系统.通过研究各种同步误差对接收数据的影响,充分利用系统中的冗余信息,提出估计精度更高,收敛速度更快的同步算法.理论分析和实验结果表明,提出的算法比传统算法性能更优越.可以适应恶劣环境的应用.
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| 关 键 词： | 数字电视地面广播 正交频分复用 同步 恶劣信道环境 |
Synchronization system for DVB-T standard in severe channels |
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| LIU Peng,LI Bing-bing,LU Zhao-yang,GONG Feng-kui.Synchronization system for DVB-T standard in severe channels[J].Journal of Harbin Institute of Technology,2009(9):119-122. |
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| Authors: | LIU Peng LI Bing-bing LU Zhao-yang GONG Feng-kui |
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| Affiliation: | (State Key Lab.of ISN,Xidian University,Xi’an 710071,China) |
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| Abstract: | To adapt to the severe channel environments,an OFDM synchronization system for DVB-T is presented.By researching the effects of synchronization offsets and using all the redundant information,some algorithms with high accuracy and fast convergency speed are proposed.The theoretical analyses and simulations demonstrate that the proposed algorithms have better performances than conventional methods and can adapt to the severe environments well. |
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| Keywords: | DVB-T OFDM synchronization severe channel environments |
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