天地一体化信息网络中信号光束偏移对卫星混沌激光安全通信系统性能影响

李密; 陈强; 曾丞; 汪学; 王祎思; 陈向飞

doi:10.11959/j.issn.2096-8930.2021020

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天地一体化信息网络中信号光束偏移对卫星混沌激光安全通信系统性能影响

专题：天地一体化信息网络传输技术 | 更新时间：2024-06-03

- 天地一体化信息网络中信号光束偏移对卫星混沌激光安全通信系统性能影响
- Effect of Optical Signal Beam Shift on the Performance of Satellite Chaos Laser Safety Communication System under Space-Integrated-Ground Information Network
- 天地一体化信息网络 2021年2卷第2期页码：53-61
- 作者机构：
- 作者简介：
  
  [ "李密（1980-），南京大学现代工程与应用科学学院副教授，江苏省大众创业万众创新研究会创始会员，江苏省“六大人才高峰”高层次人才，主要研究方向为超高速空间激光通信技术、空间混沌硬件安全技术" ]
  [ "陈强（1971-），南京大学现代工程与应用科学学院教授，主要研究方向为激光通信技术、光纤传感检测技术" ]
  [ "曾丞（1996-），南京大学现代工程与应用科学学院硕士生，主要研究方向为空间激光通信技术和空间混沌激光通信技术" ]
  [ "汪学（1998-），南京大学现代工程与应用科学学院硕士生，主要研究方向为空间激光通信和空间混沌安全通信" ]
  [ "王祎思（1998-），南京大学现代工程与应用科学学院硕士生，主要研究方向为相干激光通信技术、空间混沌硬件安全技术" ]
  [ "陈向飞（1969-），南京大学现代工程与应用科学学院教授，主要研究方向为光通信、集成微波光子学、精准光子集成" ]
- 基金信息：
  
  江苏省“六大人才高峰”高层次人才项目;Six Talent Peaks Project in Jiangsu Province under Grant(KTHY-003);国家重点研发计划;National Key Research and Development Program of China under Grant(2020YFB2205803);中央高校基本科研业务费专项;Fundamental Research Funds for the Central Universities under Grant(021314380171);江苏省自然科学基金面上项目;Jiangsu Provincial Natural Science Foundation of China under Grant(BK20201251);国家自然科学基金;National Natural Science Foundation of China under Grant(61205045)
- DOI：10.11959/j.issn.2096-8930.2021020
  中图分类号： TN929.1
- 网络出版日期：2021-06，
  
  纸质出版日期：2021-06-20
- 稿件说明：
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李密, 陈强, 曾丞, 等. 天地一体化信息网络中信号光束偏移对卫星混沌激光安全通信系统性能影响[J]. 天地一体化信息网络, 2021,2(2):53-61.

Mi LI, Qiang CHEN, Cheng ZENG, et al. Effect of Optical Signal Beam Shift on the Performance of Satellite Chaos Laser Safety Communication System under Space-Integrated-Ground Information Network[J]. Space-integrated-ground information networks, 2021, 2(2): 53-61.
李密, 陈强, 曾丞, 等. 天地一体化信息网络中信号光束偏移对卫星混沌激光安全通信系统性能影响[J]. 天地一体化信息网络, 2021,2(2):53-61. DOI： 10.11959/j.issn.2096-8930.2021020.

Mi LI, Qiang CHEN, Cheng ZENG, et al. Effect of Optical Signal Beam Shift on the Performance of Satellite Chaos Laser Safety Communication System under Space-Integrated-Ground Information Network[J]. Space-integrated-ground information networks, 2021, 2(2): 53-61. DOI： 10.11959/j.issn.2096-8930.2021020.

摘要

研究信号光束偏移对天地一体化信息网络中卫星混沌激光安全通信系统性能的影响，推导由信号光束偏移引起的外失配与内失配影响的系统误码率模型。基于此误码率模型进行数值仿真，研究信号光束偏移如何引起内外失配进而影响系统误码率性能。研究结果表明，光束漂移会在指向误差基础上进一步增大外失配与内失配，从而影响系统性能。当指向误差较小时，优化光束漂移对系统性能提升更大；当指向误差较大时，优化内失配对系统性能提升更大。研究结果对卫星混沌激光安全通信系统的实际工程设计具有重要参考意义，并为将地面高速混沌激光安全技术推广到天地一体化领域奠定基础。

Abstract

The eff ect of beam center shift on the performance of satellite chaos laser safety communication system in spaceintegrated-ground information network was studied

the bit error rate (BER) formulae with external and internal mismatch caused by beam center shift was conducted.Based on the BER formulae

the eff ect of beam center shift on external and internal mismatch and system performance was analyzed.The results show that beam wander will further increase external and internal mismatch based on pointing error then aff ect system performance.When pointing error is relatively small

optimizing beam wander will improve system performance more

and when pointing error is relatively large

optimizing internal mismatch will improve system performance more.The research results of this paper have important reference signifi cance for the actual engineering design of satellite chaos laser safety communication system

and lay the foundation for the promotion of terrestrial high-speed chaos laser safety technology to the fi eld of space-integrated-ground.

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references

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