Transmission Characteristics of Laser Signal in Sand and Dust Weather

doi:10.3788/fgxb20173804.0521

	Transmission Characteristics of Laser Signal in Sand and Dust Weather
	Wang, Hui-Qin; Yao, Yu; Cao, Ming-Hua
刊名	Faguang Xuebao/Chinese Journal of Luminescence
	2017-04-01
卷号	38 期号:4 页码:521-529
关键词	Laser theory Light scattering Multiple scattering Solar absorbers Attenuation characteristics Light intensity distribution Radiation propagation Scattering char-acteristics Scattering number Scattering phase function Small angle approximations Transmission characteristics
ISSN号	10007032
DOI	10.3788/fgxb20173804.0521
英文摘要	Based on the small-angle approximation condition, the radiation propagation equation of the laser signal in dust weather was deduced by using sequential recursive method, the distribution of light intensity under multiple scattering was obtained, and the wavelength and the asymmetry factor's influence on the scattering light intensity were also analyzed. Furthermore, by comparing the different scattering phase functions and the scattering characteristics of the dust particles, an amended Two Term Henyey-Greenstein (TTHG) phase function was adopted, which can reflect the scattered light intensity distribution more comprehensive. The results show that the scattered light intensity increases firstly and then decreases with the increasing of the optical thickness, and the proportion of the multiple-scattering becomes larger gradually. When the scattering number is more than three times, the change of the received light intensity can be ignored. Compared with Mie theory, the results of the small-angle approximation method are more reliable, which can accurately describe the laser signal transmission characteristics in dust weather. © 2017, Science Press. All right reserved.
语种	中文
出版者	Chines Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113991]
专题	计算机与通信学院
作者单位	School of Computer & Communication, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Hui-Qin,Yao, Yu,Cao, Ming-Hua. Transmission Characteristics of Laser Signal in Sand and Dust Weather[J]. Faguang Xuebao/Chinese Journal of Luminescence,2017,38(4):521-529.
APA	Wang, Hui-Qin,Yao, Yu,&Cao, Ming-Hua.(2017).Transmission Characteristics of Laser Signal in Sand and Dust Weather.Faguang Xuebao/Chinese Journal of Luminescence,38(4),521-529.
MLA	Wang, Hui-Qin,et al."Transmission Characteristics of Laser Signal in Sand and Dust Weather".Faguang Xuebao/Chinese Journal of Luminescence 38.4(2017):521-529.