| TDS-OFDM系统中同步方法的研究 |
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| 引用本文： | 赵文亮,陈伟,胡皓,朱维乐. TDS-OFDM系统中同步方法的研究[J]. 电视技术, 2006, 0(12): 6-9 |
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| 作者姓名： | 赵文亮 陈伟 胡皓 朱维乐 |
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| 作者单位： | 电子科技大学,电子工程学院,四川,成都,610054;电子科技大学,电子工程学院,四川,成都,610054;电子科技大学,电子工程学院,四川,成都,610054;电子科技大学,电子工程学院,四川,成都,610054 |
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| 摘 要： | 讨论了一种在TDS-OFDM系统中利用PN保护间隔进行系统同步的方法,用本地生成的PN序列和接收到的时域数据进行相关,找到相关峰位置,利用相关峰位置完成定时同步,同时采用二次相关完成载波频率同步.通过仿真证明本同步方案具有较好的同步性能.
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| 关 键 词： | TDS-OFDM系统 PN序列 定时同步 频率同步 |
| 文章编号： | 1002-8692(2006)12-0006-04 |
| 收稿时间： | 2006-09-15 |
| 修稿时间： | 2006-09-15 |
Research of Synchronization Method in TDS-OFDM Systems |
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| ZHAO Wen-liang,CHEN Wei,HU Hao,ZHU Wei-le. Research of Synchronization Method in TDS-OFDM Systems[J]. Ideo Engineering, 2006, 0(12): 6-9 |
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| Authors: | ZHAO Wen-liang CHEN Wei HU Hao ZHU Wei-le |
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| Affiliation: | Department of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | This paper discusses a method, which uses pseudonoise (PN) guard interval for system synchronization in the TDS-OFDM. This method can be used to find the correlation peak and complete timing synchronization with the position of the peak by the correlation between the locally generated PN sequences and the received data in time domain. At the same time, quadratic correlation can be used in this method to complete carrier frequency synchronization. Simulation results show that this method provides better synchronization performance. |
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| Keywords: | TDS-OFDM PN sequences timing synchronization frequency synchronization |
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