| 一种新型OFDM系统频率和时间同步算法 |
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| 引用本文： | 平一帆,张海林,王皓. 一种新型OFDM系统频率和时间同步算法[J]. 无线电通信技术, 2007, 33(1): 9-10 |
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| 作者姓名： | 平一帆 张海林 王皓 |
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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,陕西,西安,710071 |
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| 摘 要： | 提出了一种正交频分复用(OFDM)系统的频率和时间同步算法。该算法利用未经过前一个符号的延迟扩展干扰的循环前缀部分来进行频率偏移和时间偏移的估计。因此,该算法有效地降低了ISI的影响。最后,该算法在存在高斯白噪声和多径信道的条件下进行了仿真,仿真结果表明这种算法有很好的估计性能。
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| 关 键 词： | 正交频分复用 同步 频率偏移 时间偏移 |
| 文章编号： | 1003-3114（2007）01-09-2 |
| 修稿时间： | 2006-04-19 |
A New Frequency and Symbol Synchronization Algorithm for OFDM System |
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| PING Yi-fan,ZHANG Hai-lin,WANG Hao. A New Frequency and Symbol Synchronization Algorithm for OFDM System[J]. Radio Communications Technology, 2007, 33(1): 9-10 |
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| Authors: | PING Yi-fan ZHANG Hai-lin WANG Hao |
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| Abstract: | In this paper,a new frequency and symbol synchronization algorithm for OFDM systems is proposed.The proposed frequency and symbol synchronization are estimated by using GI(guard interval)section,which is not disturbed by delay spread of last OFDM symbol.Thus,the proposed algorithm is effective in reducing the influence of ISI(inter symbol interference).At last,performance of the proposed method is simulated under AWGN and multipath channel model.The result demonstrated that the proposed method has good performance. |
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| Keywords: | orthogonal frequency division multiplexing synchronization frequency offset timing offset |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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