| 一种新的导音辅助OFDM符号定时算法 |
| |
| 引用本文： | 崔小准,胡光锐,陈豪.一种新的导音辅助OFDM符号定时算法[J].上海交通大学学报,2003,37(6):805-808. |
| |
| 作者姓名： | 崔小准 胡光锐 陈豪 |
| |
| 作者单位： | 1. 上海交通大学,电子工程系,上海,200030
2. 西安空间无线电技术所,西安,710000 |
| |
| 基金项目： | 国家自然科学基金资助项目 (60 172 0 18) |
| |
| 摘 要： | 提出的算法仅利用一个导音符号来进行符号定时恢复，适合与突发模式的正交频分多路(OFDM)信号，而且OFDM帧同步和符号同步能一次完成，简化同步实现的复杂度，算法采用自相关计算，对载波频率偏移具有较强的鲁棒性。仿真结果表明，即使在频率选择性衰落信道中，提出的算法也能快速地实现符号定时同步。
|
| 关 键 词： | 正交频分多路 符号定时算法 导音 定时测度 |
| 文章编号： | 1006-2467(2003)06-0805-04 |
| 修稿时间： | 2003年4月6日 |
A Novel Pilot-Based Symbol Timing Algorithm for Orthogonal Frequency Division Multiplexing (OFDM) System |
| |
| CUI Xiao zhun ,HU Guang rui ,CHEN Hao.A Novel Pilot-Based Symbol Timing Algorithm for Orthogonal Frequency Division Multiplexing (OFDM) System[J].Journal of Shanghai Jiaotong University,2003,37(6):805-808. |
| |
| Authors: | CUI Xiao zhun HU Guang rui CHEN Hao |
| |
| Institution: | CUI Xiao zhun 1,HU Guang rui 1,CHEN Hao 2 |
| |
| Abstract: | In the novel symbol timing algorithm, only one pilot is used for the symbol timing recovery. Hence the algorithm is suitable for the burst OFDM symbol. The frame and symbol can be synchronized simultaneously, which can decrease the complexity of synchronization. By using an autocorrelation, the proposed algorithm is robust against the carrier frequency offsets. The simulation shows that the proposed method can quickly and exactly implement the symbol synchronization even in a frequency selective fading channel. |
| |
| Keywords: | orthogonal frequency division multiplexing (OFDM) symbol timing algorithm pilot timing metric |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
