自适应光学技术在星地激光通信地面站上的应用

综述了自适应光学技术在星地激光通信地面站上应用的最新进展。针对星地链路中湍流效应导致的相干度退化和可用度降低的问题，自适应光学技术成为美国和欧洲等国正在研制的中继卫星至地光通信系统解决上述问题的主导手段。这些项目计划开展的自适应光学技术、白天和夜晚多地面站接收技术和相干通信技术等关键技术验证表明，星地激光通信正向高速相干和全天时高可用度的工程化推进。国内成功进行了多次星地光通信试验，高可用度的相干激光通信技术的验证正在积极开展，自适应光学技术已应用到多个地面站并取得了较好的初步试验效果，相关技术进展与国外水平保持一致。

Abstract

The advance of satellite to ground laser communication station using adaptive optics (AO) is summarized. Adaptive optics is the dominant technology to solve the atmosphere induced coherence degradation and availability reduction in the USA and Europe researching relay satellites. Key technologies, such as adaptive optics, muti- ground station receiving in day and night，and coherent communication are planned to test in these projects. It indicates that the satellite to ground laser communication is advancing to the engineering application with high date rate coherence and round-the-clock high availability. Several satellite to ground laser communication experiments have been successfully carried out in domestic, and the high availability coherent laser communication test is in progress. Adaptive optics technology has been applied in several ground stations and pretty results are obtained in the preliminary experiment. The related technology progress keeps in the same level with the foreign countries.

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芮道满, 刘超, 陈莫, 鲜浩. 自适应光学技术在星地激光通信地面站上的应用[J]. 光电工程, 2018, 45(3): 170647. Rui Daoman, Liu Chao, Chen Mo, Xian Hao. Application of adaptive optics on the satellite laser communication ground station[J]. Opto-Electronic Engineering, 2018, 45(3): 170647.

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