多平台激光通信组网共焦点反射式光学天线设计

目前国际上点对点激光通信技术已较为成熟,但多平台间组网通信问题仍未能解决.提出了一种新型组网通信光学天线设计方法,可实现多点间同步双工激光通信.分析了光学天线原理,并通过仿真建模验证了设计理论,给出了光学天线的结构设计和工作模式,最后采用数学最优控制算法推导出多组光学天线多平台动态、双工通信的工作范围,当旋转抛物面开口为300 mm 时,能使方位角为360°,俯仰范围为90°以上.并针对GEO(高轨道卫星)—GEO—OGS(光学地面站)间的组网通信要求进行了光学天线的初始化设计,对推动激光通信技术实现大范围宽领域应用具有重要意义.

Abstract

The point-to-point laser communication technology has been more mature.However,network communication problems among different platforms are still unable to be solved.A new design method of the optical antenna networking communication is put forward,which can achieve multi- point synchronous duplex laser communication.Firstly,the principle of optical antenna is analyzed and validated by modeling and simulation.Then,the structure design and the working mode of the optical antenna are presented.Finally,the working range for duplex communication and optical antenna multi-platform is analyzed through optimal control algorithm.Assumes the rotational parabolic aperture is 300 mm,this system can achieve 360° azimuth and over 90°elevation range.For network communication requirements of GEO（geosychronons earth orbit）-GEO-OGS（optical ground station）,the initial optical antenna is intended.It has an important meaning for promoting the laser communication application technology in a wide range of areas.

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张涛, 付强, 李亚红, 姜会林. 多平台激光通信组网共焦点反射式光学天线设计[J]. 光学学报, 2015, 35(10): 1022006. Zhang Tao, Fu Qiang, Li Yahong, Jiang Huilin. Design of Confocal Reflection Optical Antenna of Multi-Platform Network Laser Communication[J]. Acta Optica Sinica, 2015, 35(10): 1022006.

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