| 基于PN序列的OFDM系统同步过程研究 |
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| 引用本文： | 李芳芳,郑建宏. 基于PN序列的OFDM系统同步过程研究[J]. 云南民族大学学报(自然科学版), 2005, 14(1): 43-45 |
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| 作者姓名： | 李芳芳 郑建宏 |
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| 作者单位： | 重庆邮电学院,移动通信重点实验室,重庆,400065 |
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| 基金项目： | 国家科技部科研基金资助(编号:01C26215110971). |
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| 摘 要： | OFDM技术作为一种适用于高速无线传输的调制技术近年来越来越受到关注,但其显著问题是对时频偏移十分敏感.提出一种基于PN序列的OFDM系统的同步过程,包括符号同步,载波同步和采样率同步.仿真结果证明这种同步体制具有较好的同步精度.
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| 关 键 词： | OFDM 符号定时 频偏估计 |
| 文章编号： | 1672-8513(2005)01-0043-03 |
| 修稿时间： | 2004-07-09 |
Synchronization Scheme Based on OFDM System in Wireless Channel |
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| LI Fang-fang,ZHEN Jian-hong hongqing ,China). Synchronization Scheme Based on OFDM System in Wireless Channel[J]. Journal of Yunnan Nationalities University:Natural Sciences Edition, 2005, 14(1): 43-45 |
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| Authors: | LI Fang-fang ZHEN Jian-hong hongqing China) |
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| Affiliation: | LI Fang-fang,ZHEN Jian-hong hongqing 400065,China) |
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| Abstract: | The OFDM technique has recently gained increased interest as a modulation scheme for high-speed wireless transmission. However, The principal weakness of OFDM is its sensitivity to time and frequency offsets. In this paper, a synchronization scheme based on PN sequence was presented, include symbol synchronization,carrier synchronization and sample rate synchronization. The simulation results show that it has better synchronization precision. |
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| Keywords: | OFDM symbol timing frequency offset estimation |
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