Phase Offset Tracking for Free Space Digital Coherent Optical Communication System
文献类型：期刊论文
| 作者 | Li, Hongwei1,3,4; Huang, Yongmei1,3; Wang, Qiang1,3; He, Dong1,3; Peng, Zhenming4; Li, Qing1,3,4 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 9期号:5 |
| 关键词 | phase offset estimation method Viterbi-Viterbi algorithm Kalman filter atmosphere turbulence estimation error |
| DOI | 10.3390/app9050836 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The coherent receiving method can improve the sensitivity of an optical signal receiver for free space optical communication system effectively. To implement coherent receiving, the phase offset between the local laser in the receiver and the received optical signal through the atmosphere needs to be measured and estimated. The commonly used algorithm is the Viterbi-Viterbi phase offset estimation method (VVPE) and this method always produces great errors especially with low SNR (signal to noise ratio). To improve the estimation performance, we present a new method combing the VVPE with the Kalman filter (VVPE-KF) to estimate the phase offset. This method can lower the estimation error by no less than 60%, when the SNR is low. To verify the performance of this new method, the constant parameter channel and atmosphere turbulence channel are employed to evaluate the algorithm. The impact of the atmosphere turbulence intensity on the tracking error is discussed. |
| 出版地 | BASEL |
| WOS关键词 | CARRIER PHASE |
| WOS研究方向 | Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000462504400023 |
| 出版者 | MDPI |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/9670]  |
| 专题 | 光电技术研究所_光电工程总体研究室（一室） |
| 作者单位 | 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu 610054, Sichuan, Peoples R China 4.Chinese Acad Sci, Key Lab Opt Engn, Chengdu 610209, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Hongwei,Huang, Yongmei,Wang, Qiang,et al. Phase Offset Tracking for Free Space Digital Coherent Optical Communication System[J]. APPLIED SCIENCES-BASEL,2019,9(5). |
| APA | Li, Hongwei,Huang, Yongmei,Wang, Qiang,He, Dong,Peng, Zhenming,&Li, Qing.(2019).Phase Offset Tracking for Free Space Digital Coherent Optical Communication System.APPLIED SCIENCES-BASEL,9(5). |
| MLA | Li, Hongwei,et al."Phase Offset Tracking for Free Space Digital Coherent Optical Communication System".APPLIED SCIENCES-BASEL 9.5(2019). |
入库方式： OAI收割
来源：光电技术研究所
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