首页|晴天天气下紫外光通信噪声模型

晴天天气下紫外光通信噪声模型

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紫外光在自由空间中传输时,大气湍流以及太阳活动都会对紫外光产生影响.为了克服强背景光引起的通信性能降低问题,本文推导了晴天条件下不同时刻、不同季节的紫外光背景辐射的变化,通过与测量数据进行对比,验证了理论模型的有效性.在晴天天气下,理论模型与实测数据相符合,误差分析表明,实测数据和理论模型相关系数达到0.93.此外本文也对比分析了在阴天和雾霾天气下的实测数据和理论模型的差异.并且在地表理论模型的基础上对高空的紫外光噪声分布进行了测量,还原了高空噪声变化.实验结果表明,随着海拔高度每升高1000m,紫外噪声日变化趋势不变,紫外光辐射值会增加20%-23%左右.该模型的建立,对空间紫外光通信奠定了理论基础,提供了实验依据.
Noise model of ultraviolet light communication in sunny weather
The propagation of ultraviolet light through free space is affected by atmospheric turbulence and solar activity.This study derives the variations in the ultraviolet background radiation under clear sky conditions at different times and seasons to address the issue of reduced communication performance caused by strong background light.The effectiveness of the theoretical model is validated by comparing it with measured data.Furthermore,the theoretical model aligns well with the measured data under clear sky conditions,with a correlation coefficient of 0.93.The study also compares and analyzes the differences between the measured data and the theoretical model during overcast and hazy weather conditions.The distribution of ultraviolet noise in high-altitude regions is determined,and the variations in high-altitude noise are reconstructed based on the surface theoretical model.Experimental results indicate that for every 1000 m increase in altitude,the daily variation trend of ultraviolet noise is the same,and the amount of ultraviolet radiation value increases by approximately 20%-23%.This study provides a theoretical foundation for space ultraviolet communication and provides empirical insights.

ultraviolet communicationatmospheric turbulencenoise modelhigh-altitude noise model

柯程虎、王沸钢、柯熙政

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西安文理学院信息工程学院,西安 710065

西安理工大学自动化与信息工程学院,西安 710048

陕西省智能协同网络军民融合共建重点实验室,西安 710048

紫外光通信 大气湍流 噪声模型 高空噪声模型

陕西省重点产业创新项目国家自然科学基金

2017ZDCXL-GY-06-0161377080

2024

中国科学(物理学 力学 天文学)
中国科学院

中国科学(物理学 力学 天文学)

CSTPCD北大核心
影响因子:0.644
ISSN:1674-7275
年,卷(期):2024.54(2)
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