Interference and Protection in Satellite Laser Communication

Chenzhe LAO; Jianfeng SUN

doi:10.11959/j.issn.2096-8930.2023016

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Interference and Protection in Satellite Laser Communication

Special Issue: Satellite Internet Security Technology | 更新时间：2024-06-03

- Interference and Protection in Satellite Laser Communication
- Space-Integrated-Ground Information Networks Vol. 4, Issue 2, Pages: 24-30(2023)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-8930.2023016
  CLC： TP393
- Online First：2023-06，
  
  Published：20 June 2023
- 稿件说明：
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Chenzhe LAO, Jianfeng SUN. Interference and Protection in Satellite Laser Communication[J]. Space-Integrated-Ground Information Networks, 2023, 4(2): 24-30.
DOI：

Chenzhe LAO, Jianfeng SUN. Interference and Protection in Satellite Laser Communication[J]. Space-Integrated-Ground Information Networks, 2023, 4(2): 24-30. DOI： 10.11959/j.issn.2096-8930.2023016.

摘要

为了探究卫星激光通信中对于各种外部干扰的安全防护技术，介绍卫星激光通信链路中存在的大气湍流、太空背景噪声、弱光干扰和强激光干扰等4种干扰源及其作用原理，并给出前两种干扰在理论分析中常用的数值模型。其中弱光干扰和强激光干扰又被称为激光有源干扰，是一种人为干扰手段。从通信体制维度出发，分别分析这4种干扰源对于相干和非相干通信体制系统的影响，给出不同体制下应对这4种干扰的当前主流的防护技术，从通用性、成本以及易用性等角度，比较各种防护手段的技术特点并说明它们在卫星激光通信中的主要应用场景。

Abstract

In order to explore the safety protection technologies for various external interferences in satellite laser communication

four interference sources in the satellite laser communication link and their principles were introduced

included atmospheric turbulence

space background noise

weak light interference

and strong laser interference.And numerical models commonly used in theoretical analysis of the first two interferences were provided.Weak light interference and strong laser interference

also known as laser active interference

were artificial interference methods.From the scheme of communication

the impact of these four interference sources on coherent and incoherent communication systems was analyzed

and the current mainstream protection technologies for these four interferences under different systems were provided.The characteristics of various protection technologies were compared from versatility

cost

usability and their main application scenarios in satellite laser communication were explained.

关键词

Keywords

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