| COFDM系统的符号定时同步算法 |
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| 引用本文： | 艾渤,刘刚,葛建华.COFDM系统的符号定时同步算法[J].高技术通讯,2002,12(8):26-31. |
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| 作者姓名： | 艾渤 刘刚 葛建华 |
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| 作者单位： | 西安电子科技大学综合业务网国家重点实验室,西安,710071 |
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| 基金项目： | 数字视频广播关键技术研究基金资助项目 |
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| 摘 要： | 通过对欧洲OFDM接收方案的分析 ,提出了一种易于FPGA实现的同步解决方案。结合计算机仿真和工程实现 ,提出了一种新的符号定时同步算法。该法克服了常规ML方法估计出的符号同步位置波动较大的缺点 ,弥补了门限估计方法中实际同步起始位置与估计位置相差大的不足 ,可以较好地实现符号定时同步
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| 关 键 词： | HDTV COFDM ML方法 符号定时同步 |
| 修稿时间： | 2001年6月27日 |
Symbol Timing Recovery Algorithm for COFDM System |
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| Ai Bo,Liu Gang,Ge Jianhua.Symbol Timing Recovery Algorithm for COFDM System[J].High Technology Letters,2002,12(8):26-31. |
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| Authors: | Ai Bo Liu Gang Ge Jianhua |
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| Abstract: | A synchronization scheme, which is easy to be implemented with FPGA by analyzing the European OFDM receiving system, is presented. A new symbol timing recovery algorithm is also proposed with computer-simulation results. This method has advantages of a stable, accurate estimated synchronization position over ML method and Gate Estimation method, which has fluctuation of its estimated synchronization position and a big difference between the actual initial synchronization position and estimated initial position respectively. |
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| Keywords: | HDTV COFDM ML Symbol timing recovery |
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