Performance of an adaptive phase estimator for coherent free-space optical communications over Gamma-Gamma turbulence

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• 作者：Yiming Li ; Chao Gao ; Haodong Liang ; Maoke Miao ; Xiaofeng Li ; ^{lxf3203433@uestc.edu.cn}
• 关键词：Phase estimation ; Coherent detection ; Free-space optical communications ; Turbulence
• 刊名：Optics Communications
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：388
• 期：Complete
• 页码：47-52
• 全文大小：788 K
• 卷排序：388

文摘

An adaptive phase estimator for coherent FSO systems is studied. Closed-form expressions for the variance of phase error is derived. The adaptive phase estimator has improved phase estimating performance. A smaller SNR penalty on BER performance is demonstrated in FSO systems.