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Application of AdamSPGD algorithm to sensor-less adaptive optics in coherent free-space optical communication system
H. Zhang; L. Xu; Y. F. Guo; J. T. Cao; W. Liu and L. Q. Yang
2022
发表期刊Optics Express
ISSN1094-4087
卷号30期号:5页码:7477-7490
摘要Sensor-less adaptive optics based on stochastic parallel gradient descent (SPGD) is effective for the compensation of atmospheric disturbances in coherent free-space optical communication systems. However, SPGD converges slowly and easily falls into local extremes. Combining adaptive moment estimation and SPGD, we propose the AdamSPGD algorithm for efficient wavefront correction. Theoretical analysis and numerical simulations demonstrate that AdamSPGD can significantly increase the convergence speed, robustness, and dynamic ability, thereby more efficiently suppress the negative effects of atmospheric turbulence on mixing efficiency, bit error rate, and outage probability. Experimental results show that AdamSPGD reduces similar to 50% of iterations. The improved performances make the proposed algorithm suitable for SLAO to improve the quality of optical communications. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
DOI10.1364/oe.451350
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收录类别sci ; ei
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/66422
专题中国科学院长春光学精密机械与物理研究所
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H. Zhang,L. Xu,Y. F. Guo,et al. Application of AdamSPGD algorithm to sensor-less adaptive optics in coherent free-space optical communication system[J]. Optics Express,2022,30(5):7477-7490.
APA H. Zhang,L. Xu,Y. F. Guo,J. T. Cao,&W. Liu and L. Q. Yang.(2022).Application of AdamSPGD algorithm to sensor-less adaptive optics in coherent free-space optical communication system.Optics Express,30(5),7477-7490.
MLA H. Zhang,et al."Application of AdamSPGD algorithm to sensor-less adaptive optics in coherent free-space optical communication system".Optics Express 30.5(2022):7477-7490.
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