强湍流信道中含有瞄准误差的空间光通信中断概率分析

吴君鹏; 宋路

doi:10.3788/OPE.20162413.0103

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强湍流信道中含有瞄准误差的空间光通信中断概率分析

更新时间：2020-08-13

- 强湍流信道中含有瞄准误差的空间光通信中断概率分析
- Outage probability analysis in optical communication with pointing errors in strong turbulence channel
- 光学精密工程 2016年24卷第10s期页码：103-108
- 作者机构：
  
  1. 长春理工大学电子信息工程学院,吉林长春,130022
  2. 东北电力大学电气工程学院,吉林吉林,132012
- 作者简介：
- 基金信息：
  
  国家自然科学基金面上项目（No.41076060）();吉林省自然科学基金资助项目（No.20130101056JC）()
- DOI：10.3788/OPE.20162413.0103
  中图分类号： TN929.1;TN929.12
- 收稿日期：2016-05-31，
  
  修回日期：2016-06-11，
  
  纸质出版日期：2016-11-14
- 稿件说明：
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吴君鹏, 宋路,. 强湍流信道中含有瞄准误差的空间光通信中断概率分析[J]. 光学精密工程, 2016,24(10s): 103-108

WU Jun-peng, SONG Lu,. Outage probability analysis in optical communication with pointing errors in strong turbulence channel[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 103-108
吴君鹏, 宋路,. 强湍流信道中含有瞄准误差的空间光通信中断概率分析[J]. 光学精密工程, 2016,24(10s): 103-108 DOI： 10.3788/OPE.20162413.0103.

WU Jun-peng, SONG Lu,. Outage probability analysis in optical communication with pointing errors in strong turbulence channel[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 103-108 DOI： 10.3788/OPE.20162413.0103.

摘要

大气湍流中的光强闪烁和瞄准偏差是影响光通信性能的两个重要因素。本文根据强湍流大气信道环境下的K分布模型和瞄准偏差分布模型，采用强度调制直接探测（IM/DD）开关键控（OOK）通信方式，利用MeijerG函数导出了通信系统的中断概率解析表达式。通过数值计算，分析了大气湍流程度、波束宽度、抖动偏差对系统中断概率的影响。结果表明在强湍流大气信道中，波束宽度的减小可以降低系统的中断概率，同时通信终端设备的抖动偏差会导致中断概率增加。在归一化波束宽度为1时，系统的中断概率降低到0.12。因此，在实际通信信道中维持可靠的通信链路，需要进一步优化波束宽度。

Abstract

Light intensity scintillation and pointing error in atmosphere turbulence are the key factors influencing the optical communication performance. According to the K-distribution model and pointing errors distribution model

the analytical expression for outage probability of the communication system was derived by using the MeijerG function under the intensity modulation/direct detection(IM/DD) with on-off keying(OOK) modes. Through numerical calculation

the impact of atmosphere turbulence

beam width and jitter deviation on the system outage probability was analyzed. It indicates that in the strong atmosphere turbulence channel

decrease of beam width can lower the system outage probability

while the jitter deviation of the communication terminal equipment will increase the outage probability. When the beam width is normalized to be 1

the system outage probability declined to 0.12. Hence

it is necessary to further optimize the beam width in order to maintain reliable communication link in the actual communication channel.

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Keywords

references

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