星地激光通信中地球背景辐射的抑制研究
发布时间：2018-12-31 21:15
【摘要】：研究了星地激光通信中地球背景辐射及其抑制技术。推导出了不同轨道处星上终端的地球背景辐射入瞳功率理论公式,提出了固有杂散辐射的概念,并对其作了理论推导。针对一个典型的终端对其地球背景辐射进行了理论计算,并设计了不同形式的遮光系统。最后利用光学仿真软件LightTools对不同轨道高度、不同遮光系统形式的星上终端的杂散辐射进行了仿真,得到了轨道高度以及遮光系统形式对杂散辐射的影响曲线,并对其作了分析。为星地激光通信中星上终端的地球背景辐射提供了理论依据,为星上终端的遮光系统设计提供了仿真依据。
[Abstract]:The earth background radiation and its suppression technique in satellite-ground laser communication are studied. This paper deduces the theoretical formula of the power of the earth background radiating into the pupil of the terminal on the satellite in different orbits, puts forward the concept of inherent stray radiation, and deduces the theory of the inherent stray radiation. For a typical terminal, the earth background radiation is calculated theoretically, and different shading systems are designed. Finally, the optical simulation software LightTools is used to simulate the stray radiation of the satellite terminal with different orbital heights and different shading system forms. The influence curves of orbit height and shading system form on the stray radiation are obtained and analyzed. It provides the theoretical basis for the earth background radiation of the satellite terminal in the satellite-to-ground laser communication, and provides the simulation basis for the design of the optical shading system on the satellite terminal.
【作者单位】： 哈尔滨工业大学航天学院;哈尔滨工业大学仪器科学与技术博士后流动站;
【基金】：国家自然科学基金(10904026) 黑龙江省博士后基金(LBH-210140)
【分类号】：TN929.1
[Abstract]:The earth background radiation and its suppression technique in satellite-ground laser communication are studied. This paper deduces the theoretical formula of the power of the earth background radiating into the pupil of the terminal on the satellite in different orbits, puts forward the concept of inherent stray radiation, and deduces the theory of the inherent stray radiation. For a typical terminal, the earth background radiation is calculated theoretically, and different shading systems are designed. Finally, the optical simulation software LightTools is used to simulate the stray radiation of the satellite terminal with different orbital heights and different shading system forms. The influence curves of orbit height and shading system form on the stray radiation are obtained and analyzed. It provides the theoretical basis for the earth background radiation of the satellite terminal in the satellite-to-ground laser communication, and provides the simulation basis for the design of the optical shading system on the satellite terminal.
【作者单位】： 哈尔滨工业大学航天学院;哈尔滨工业大学仪器科学与技术博士后流动站;
【基金】：国家自然科学基金(10904026) 黑龙江省博士后基金(LBH-210140)
【分类号】：TN929.1
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