电波科学学报2024，Vol.39Issue(2)：225-236,12.DOI:10.12265/j.cjors.2023027
无线光通信中大气湍流噪声测量研究
Research on measurement of atmospheric turbulence noise in wireless optical communication
摘要
Abstract
Atmospheric turbulence affects the transmission performance of optical signals in the atmosphere,mainly including intensity flicker,spot drift,beam spread,angle of arrival fluctuation,etc.This flicker effect is regarded as the multiplicative noise in the optical communication system transmission in this paper.The multiplicative noise model of atmospheric turbulence is derived and experimentally measured.The results show that:according to the order of sunny day,haze day,snow day,light rain,moderate rain,heavy rain and cloudy day,the effect of turbulent multiplicative noise on optical communication quality is intensified,the structure constant of atmospheric refractive index gradually increases,and the skewness and kurtosis of noise signal increase.Meanwhile,with the increase of signal-to-noise ratio(SNR),the outage probability of the system decreases gradually;at the same SNR,the outage probability decreases with the decrease of atmospheric refractive index structure constant.Studying the impact of atmospheric turbulence noise on wireless optical communication systems is of great significance.It brings important technological breakthroughs for large-scale and high-speed wireless optical communication technology and plays an important role in the development of wireless optical communication technology.关键词
无线光通信/乘性噪声/大气折射率结构常数/中断概率/衰落概率Key words
wireless optical communication/multiplicative noise/atmospheric refractive index structure constant/outage probability/fading probability分类
信息技术与安全科学引用本文复制引用
柯熙政,廖志文,梁静远,王瑞,丁德强..无线光通信中大气湍流噪声测量研究[J].电波科学学报,2024,39(2):225-236,12.基金项目
陕西省重点产业创新链项目(2017DCXL-GY-06-01) （2017DCXL-GY-06-01）
西安市科技创新引导项目(201805030YD8CG14(12)) （201805030YD8CG14(12）
