| 相干光正交频分复用系统定时同步的改进算法 |
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| 引用本文： | 谢小芳.相干光正交频分复用系统定时同步的改进算法[J].光电子．激光,2010(6):871-874. |
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| 作者姓名： | 谢小芳 |
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| 作者单位： | 天津理工大学计算机与通信工程学院通信器件教育部工程研究中心;天津理工大学薄膜电子与通信器件天津市重点实验室; |
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| 基金项目： | 天津市自然科学基金资助项目(08JCYBJC14400); 天津市教委基金资助项目(20060607,20060609) |
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| 摘 要： | 分析了当前相干光正交频分复用(CO-OFDM)系统中Schmidl&Cox经典算法在光纤信道的定时同步,针对其产生平波现象和对光纤色散(CD)的缺点,提出了改进算法,并通过MATLAB在光纤信道中对两种算法进行了仿真,结果表明,在光纤信道下,改进方法的性能有远优于经典算法,因此改进方法更适合于光纤信道。
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| 关 键 词： | 相干光正交频分复用(CO-OFDM) 光纤色散(CD) 定时同步 Schmidl&Cox算法 |
A proposed timing synchronization for coherent optical OFDM system |
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| XIE Xiao-fang.A proposed timing synchronization for coherent optical OFDM system[J].Journal of Optoelectronics·laser,2010(6):871-874. |
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| Authors: | XIE Xiao-fang |
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| Affiliation: | XIE Xiao-fang1,2,TONG Zheng-rong1,WAN Ren-wei1,YANG Xiu-feng1,XUE Yu-ming2(1.School of Computer and Communication Engineering,Tianjin University of Technology,Engineering Research Center of Communication Devices Ministry of Education,Tianjin 300384,China,2.Tianjin Key Laboratory of Film Electronic and Communication Device,China) |
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| Abstract: | Currently,timing synchronization methods in the CO-OFDM system are proposed for wireless communication.Optical fiber channel has several significant differences with Wireless channel.One of the most important differences is chromatic dispersion of fiber.This key factor degrades many timing synchronization methods.In this paper,by analyzing the drawbacks of the typical Schmidl&Cox algorithm,we propose a proposed method and simulate the two algorithms using MATLAB programs in optical fiber channel models.The ... |
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| Keywords: | coherent optical orthogonal frequency division multiplexing(CO-OFDM) chromatic dispersion(CD) timing synchronization Schmidl&Cox algorithm |
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