非Kolmogorov大气湍流下部分相干光偏振状态对相干探测灵敏度的影响研究

吴加丽; 惠玉泽; 丁德强; 柯熙政

doi:10.12263/DZXB.20221286

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非Kolmogorov大气湍流下部分相干光偏振状态对相干探测灵敏度的影响研究

学术论文 | 更新时间：2025-12-08

- 非Kolmogorov大气湍流下部分相干光偏振状态对相干探测灵敏度的影响研究
- The Influence of Polarization State of Partially Coherent Beam on Coherent Detection Sensitivity in Non-Kolmogorov Atmospheric Turbulence
- 电子学报 2023年51卷第5期页码：1370-1380
- 作者机构：
  
  1.西安理工大学自动化与信息工程学院，陕西西安 710048
  2.中国人民解放军国防科技大学信息通信学院，湖北武汉 430019
- 作者简介：
  
  [ "吴加丽女，1994年3月出生于陕西省咸阳市.现为西安理工大学自动化与信息工程学院博士研究生.主要研究方向为无线光通信.E-mail: wjl940315@163.com" ]
  [ "惠玉泽女，1996年11月出生于陕西省渭南市.现为西安理工大学自动化与信息工程学院硕士研究生.主要研究方向为无线光通信.E-mail: 240540656@qq.com" ]
  [ "丁德强（通讯作者）男，1978年11月出生于山东省青岛市.现为中国人民解放军国防科技大学信息通信学院教授.主要研究方向为无线相干光通信." ]
  [ "柯熙政男，1962年10月出生于陕西省临潼市.现为西安理工大学通信工程系教授.主要研究方向为无线光通信、信号处理及导航.E-mail: xzke@263.net" ]
- 基金信息：
  
  陕西省科研计划项目(18JK0341);陕西省重点产业创新项目(2017ZDCXL-GY-06-01);西安市科技计划项目(2020KJRC0083);国防科技大学自主创新科学基金项目(22-ZZCX-051)
- DOI：10.12263/DZXB.20221286
  中图分类号： TN919.21
- 收稿：2022-11-09，
  
  修回：2023-01-09，
  
  纸质出版：2023-05-25
- 稿件说明：
移动端阅览
吴加丽,惠玉泽,丁德强等.非Kolmogorov大气湍流下部分相干光偏振状态对相干探测灵敏度的影响研究[J].电子学报,2023,51(05):1370-1380.

WU Jia-li,HUI Yu-ze,DING De-qiang,et al.The Influence of Polarization State of Partially Coherent Beam on Coherent Detection Sensitivity in Non-Kolmogorov Atmospheric Turbulence[J].ACTA ELECTRONICA SINICA,2023,51(05):1370-1380.
吴加丽,惠玉泽,丁德强等.非Kolmogorov大气湍流下部分相干光偏振状态对相干探测灵敏度的影响研究[J].电子学报,2023,51(05):1370-1380. DOI： 10.12263/DZXB.20221286.

WU Jia-li,HUI Yu-ze,DING De-qiang,et al.The Influence of Polarization State of Partially Coherent Beam on Coherent Detection Sensitivity in Non-Kolmogorov Atmospheric Turbulence[J].ACTA ELECTRONICA SINICA,2023,51(05):1370-1380. DOI： 10.12263/DZXB.20221286.

摘要

本文讨论了在非Kolmogorov湍流下部分相干电磁高斯-谢尔模型（Electromagnetic Gaussian-Schell Model，EGSM）光束用于相干探测时系统的性能.基于相干探测理论推导了EGSM光束在非Kolmogorov湍流下斜程传输时系统灵敏度的表达式.研究了在误码率为

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5.07999992

2.53999996

下上行和下行传输时光束在不同偏振状态、功率谱幂律、湍流尺度、传输距离、天顶角、探测器参数、接收端高度或光源高度对相干探测系统灵敏度的影响.结果表明：在非Kolmogorov湍流谱下，系统灵敏度会随着功率谱幂律的增大而增大；在相同条件下，上行传输时的系统探测灵敏度大于下行传输；在链路条件相同的情况下，完全偏振的EGSM光束用于相干探测时的灵敏度均比非偏振光束的灵敏度大3 dBm.最后，建立了EGSM光束相干探测系统，通过实验验证了部分偏振EGSM光束用于相干探测的系统灵敏度介于完全偏振和非偏振之间.

Abstract

This paper mainly discusses the performance of partially coherent electromagnetic Gaussian-Schell model(EGSM) beam for coherent detection under non-Kolmogorov turbulence. Based on the coherent detection theory

the expression of the sensitivity of the EGSM beam is derived when it propagates in the slant path under non-Kolmogorov turbulence. Under the condition of bit error rate of

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the effects of coherent beam in different polarization states

power spectrum power law

turbulence scale

propagation distance

zenith angle

detector parameters

receiver height and beam source height on the sensitivity of the coherent detection system are studied in the uplink and downlink atmospheric turbulence. The results show that

under the non-Kolmogorov turbulence spectrum

the system sensitivity increases with the rise of power spectrum power law. Under the same conditions

the detection sensitivity of uplink propagation is greater than that of downlink propagation. Under the same link conditions

the sensitivity of completely polarized EGSM beam for coherent detection is 3 dBm greater than that of the unpolarized beam. The EGSM beam coherent detection system is established

and the experiments verify that the sensitivity of partially polarized EGSM beams is between that of completely polarized and unpolarized ones.

关键词

Keywords

references

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