Fade budgets of PAT link in satellite-to-ground optical communications

MA Jing; GAO Chong; TAN Li-ying; YU Si-yuan

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Fade budgets of PAT link in satellite-to-ground optical communications

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- Fade budgets of PAT link in satellite-to-ground optical communications
- Optics and Precision Engineering Vol. 15, Issue 3, Pages: 308-313(2007)
- 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： TN929.12
- Received：02 January 2007，
  
  Revised：17 February 2007，
  
  Published Online：30 June 2007，
  
  Published：30 June 2007
- 稿件说明：
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MA Jing, GAO Chong, TAN Li-ying, et al. Fade budgets of PAT link in satellite-to-ground optical communications[J]. Optics and precision engineering, 2007, 15(3): 308-313.
DOI：

MA Jing, GAO Chong, TAN Li-ying, et al. Fade budgets of PAT link in satellite-to-ground optical communications[J]. Optics and precision engineering, 2007, 15(3): 308-313. DOI：

摘要

在考虑大气闪烁、静态瞄准误差和瞄准抖动的影响下

导出了大天顶角和小天顶角传输链路的强度起伏概率密度函数

给出了跟踪中断概率随衰落冗余变化的关系表达式;最后分析了最佳的光束发散角

并对概率密度分布规律和跟踪中断概率随衰落冗余变化的规律进行了模拟分析。结果表明

对于上行和下行链路

光束发散角与瞄准抖动误差均方值的最佳比值为4和6。在最佳光束发散角下

要想确保链路跟踪中断概率小于10

-3

上行链路需要10 dB的衰落冗余

下行链路需要3 dB的衰落冗余

克服了星地光通信中强度起伏对链路跟踪稳定性的影响

保证了在跟踪过程中链路所需要的衰落冗余。

Abstract

To achieve enough fade budgets for reliable link in satellite-to-ground optical communications

the expressions for the total probability density functions of signal intensity fluctuation are derived at large zenith angles and small zenith angles considering atmospheric scintillation

static pointing error and pointing jitter and relation of the lost-tracking probability variable with fade budgets is given. Finally

the total probability density function and lost-tracking probability are simulated. Experimental results show that the ratio of the optimal beam divergent angle to the square root of the variance of the pointing jitter for uplink and downlink is 4 and 6; the required fade budget at a lost-tracking probability of 10

-3

is 10 dB and 3 dB for uplink and downlink.

关键词

Keywords

references

. 徐科华,马晶,谭立英. 深空光通信中光束瞄准技术研究[J]. 光学精密工程, 2006, 14(1):16-21. XU K H, MA J, TAN L Y. Research on beam pointing in deep space optical communication[J]. Opt. Precision Eng., 2006, 14(1):16-21. (in Chinese)

. 邵兵,孙立宁,曲东升,等. 自由空间光通信ATP系统中精瞄偏转镜的设计[J]. 光学精密工程, 2006, 14(1):43-47. SHAO B, SUN L N, QU D SH, et al.. Design of fine pointing tip/tilt mirror of ATP system for free space optical communication[J]. Opt. Precision Eng., 2006, 14(1):43-47. (in Chinese)

. 孙立宁,邵兵,曲东升. 基于PZT的微驱动系统及控制方法的研究[J]. 光学精密工程, 2004, 12(1):55-59. SUN L N, SHAO B, QU D SH. Micro-drive positioning system based on PZT and its control[J]. Opt. Precision Eng., 2004, 12(1):55-59. (in Chinese)

. 张逸新,迟泽英. 光波在大气中的传播与成像[M]. 北京:国防工业出版社, 1997. ZHANG Y X, CHI Z Y. Optical Wave Propagation and Imaging in Atmosphere[M]. Beijing: National Defence Industry Press, 1997. (in Chinese)

. ANDREWS L C, PHILLIPS R L, HOPEN C Y. Scintillation model for a satellite communication link at large zenith angles[J]. Opt. Eng., 2000, 39(12): 3272-3280.

. AL-HABASH M A, ANDREWS L C, PHILLIPS R L. Mathematical model for the irradiance probability density function of a laser beam propagating through turbulent media[J]. Opt. Eng., 2001, 40(8): 1554-1562.

. TOYOSHIMA M, ARAKI K. Far-field pattern measurement of an onboard laser transmitter by use of a space-to-ground optical link[J]. Appl. Opt., 1998, 37(10):1720-1730.

. YURA H T, MCKINLEY W G. Aperture averaging of scintillation for space-to-ground optical communication application[J]. Appl. Opt., 1983, 22(11):1608-1609.

. ANDREWS L C, PHILLIPS R L, HOPEN C Y. Laser Beam Scintillation with Applications[M]. Bellingham: SPIE Optical Engineering Press, 2001.

. 马东堂,魏急波,庄钊文. 大气激光通信中多光束传输性能分析和信道建模[J]. 光学学报, 2004, 24(8): 1020-1024. MA D T, WEI J B, ZHUANG ZH W. Performance evaluation and channel modeling of multiple-beam propagation for atmospheric laser communication[J]. Acta Optica Sinica, 2004 , 24(8):1020-1024. (in Chinese)

. KIASSALEH K. On the probability density function of signal intensity in free-space optical communication systems impaired by pointing jitter and turbulence[J]. Opt. Eng., 1994, 33(11): 3748-3757.

. FRIED P O. Scintillation in an earth-to-space propagation path[J]. J. Opt. Soc. Am., 1972, A62(7): 885-888.

. TOYOSHIMA M, YAMAKAWA S, YAMAWAKI T, et al.. Ground-to-satellite optical link tests between Japanese laser communications terminal and European geostationary satellite[J]. SPIE, 2004, 5338:1-15.

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