Research on beam pointing in deep space optical communication

XU Ke-hua; MA Jing; TAN Li-ying

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Research on beam pointing in deep space optical communication

更新时间：2020-08-12

- Research on beam pointing in deep space optical communication
- Optics and Precision Engineering Vol. 14, Issue 1, Pages: 16-21(2006)
- 作者机构：
  
  哈尔滨工业大学可调谐激光技术国家级重点实验室,黑龙江哈尔滨 150001
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH929.13
- Received：22 October 2005，
  
  Revised：14 December 2005，
  
  Published Online：20 February 2006，
  
  Published：20 February 2006
- 稿件说明：
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XU Ke-hua, MA Jing, TAN Li-ying. Research on beam pointing in deep space optical communication[J]. Optics and precision engineering, 2006, 14(1): 16-21.
DOI：

XU Ke-hua, MA Jing, TAN Li-ying. Research on beam pointing in deep space optical communication[J]. Optics and precision engineering, 2006, 14(1): 16-21. DOI：

摘要

研究了深空光通信中的光束精确瞄准技术。从航天器和天体的运动规律出发

建立了一种基于航天器和地球星历表的深空光通信的瞄准理论

导出了瞄准矢量在航天器星上坐标系中角度

角速度

角加速度的变化规律

对两终端的相对运动进行分析

导出提前瞄准角和接收光波长多普勒频移的变化规律

进行了计算机仿真。结果表明

瞄准角度、角速度、角加速度、提前瞄准角呈现出周期性变化

在当前的技术水平下

在深空距离下能实现光束的精确对准。接收光波长的多普勒频移也呈现周期性变化

其大小在0.07 nm以内

决定了深空光通信中窄带滤光片的带宽应在0.7 nm以上

也表明在深空光通信中

采用相干探测方法将面临严重挑战。

Abstract

In order to achieve the accurate pointing of beam in deep space optical communication

according to the movement rule of aircraft and celestial body

the pointing theory for deep space optical communication was set up based on the ephemeris of aircraft and the earth

the variety of pointing angle

angle velocity

and angle acceleration was educed. The relative mutation of two terminals that was used to set the deep space optical link was analyzed

and the variety of ahead pointing angle and Doppler frequency shift was educed. A computer simulation was performed

the result shows that the pointing angle

angle velocity and angle acceleration are periodical

the accurate pointing is practicable depend on the technology of China nowadays. The Doppler frequency shift of optical signaling is also periodical

its swing is 0.07 nm

which decides that the bandwidth of optical-filter should be high than 0.7 nm. The results also show that correlation detection will face serious challenge in deep space optical communication.

关键词

Keywords

references

. ALEXANDER J W, LEE S, CHEN C. Pointing and tracking concepts for deep-space missions[J]. SPIE, 1999, 3615: 230-249.

. LEE S,ALEANDER W,ORTIZ G G. Sub-microradian pointing system design for deep-space optical communications[J]. SPIE,2001,4272:104-111.

. 张雏, 周冰, 沈学举. 精确校正激光测距仪三光轴平行的理论计算方法研究[J]. 光学精密工程, 2002,10 (6):650-654. ZHANG CH, ZHOU B, SHEN X J, at al. Study of the calculation method for accurately adjusting laser-range-finder's three-optics-axis to parallel to each other[J]. Optics and Precision Engineering, 2002,10 (6):650-654.(in Chinese)

. 王悦勇, 郭喜庆, 武克用. 国外弹道式导弹方位瞄准技术及其发展[J]. 光学精密工程, 2002,10 (1):31-35. WANG Y Y, GUO X Q, WU K Y. Development trend of azimuth aiming system of basic missiles abroad[J]. Optics and Precision Engineering, 2002,10 (1):31-35.(in Chinese)

. 于思源, 马晶, 谭立英. 提高卫星光通信扫描捕获概率方法研究[J]. 光电子·激光, 2005, 16(1):57-62. YU S Y, MA J, TAN L Y. Methods of improving acquisition probability of scanning in intersatellite optical communications[J]. Journal of Optoelectronics·Laser, 2005,16(1):57-62. (in Chinese)

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