Link loss of long wavelength infrared laser propagating through rain

Wang Zhe; Wang Jingyuan; Xu Zhiyong; Zhao Jiyong; Chen Yiwang; Wang Rong; Wei Yimei

Because of the scattering and absorption of raindrops, laser power attenuates when travelling through the rain. Firstly, according to the Mie theory, the method of calculation of the extinction factor in the rain was presented. Secondly, Joss and Weibull raindrop size distributions were introduced, and the comparative analysis was shown that Joss raindrop size distribution was more precise. At last, the extinction factor and link loss of long wavelength infrared laser in the rain were analyzed by using Matlab. From the analytical results, it is cocluded that the value of the extinction factor becomes larger with rainrate increasing; Considering beam divergence, field of view and scattering energy, the link loss calculated by photon tracing method is more accurate compared with Lamber-Beer Law.

1. Institute of Communication Engineering,PLA University of Science & Technology,Nanjing 210007,China

Received Date: 2015-02-15

Rev Recd Date: 2015-03-20

Publish Date: 2015-10-25

Key words:

Abstract: Because of the scattering and absorption of raindrops, laser power attenuates when travelling through the rain. Firstly, according to the Mie theory, the method of calculation of the extinction factor in the rain was presented. Secondly, Joss and Weibull raindrop size distributions were introduced, and the comparative analysis was shown that Joss raindrop size distribution was more precise. At last, the extinction factor and link loss of long wavelength infrared laser in the rain were analyzed by using Matlab. From the analytical results, it is cocluded that the value of the extinction factor becomes larger with rainrate increasing; Considering beam divergence, field of view and scattering energy, the link loss calculated by photon tracing method is more accurate compared with Lamber-Beer Law.

HTML

Reference (31)

[1]
[2]	Zhu Yaolin, An Ran, Ke Xizheng. Effect of rainfall on wireless laser communication[J]. Acta Optica Sinica, 2013, 32(12):72-76.(in Chinese) 朱耀麟,安然,柯熙政.降雨对无线激光通信的影响[J]. 光学学报, 2013, 32(12):72-76.
[3]
[4]	Ke Xizheng, Yang Lihong, Ma Dongdong. Transmitted attenuation of laser signal in rain[J]. Infrared and Laser Engineering, 2009, 37(6):1021-1024.(in Chinese) 柯熙政,杨利红,马冬冬.激光信号在雨中的传输衰减[J]. 红外与激光工程, 2009, 37(6):1021-1024.
[5]
[6]	Song Bo, Wang Hongxing, Liu Min, et al. Raindrop size distribution model for applicability analysis of rain attenuation[J]. Laser Infrared, 2012, 42(3):310-313.(in Chinese) 宋博,王红星,刘敏,等.雨滴谱模型对雨衰减计算的适用性分析[J]. 激光与红外, 2012, 42(3):310-313.
[7]	Wei Heli, Liu Qinghong, Song Zhengfang, et al. Extinction of infrared radiation by rain[J]. Journal of Infrared and Millimeter Waves, 1997, 16(6):418-424.(in Chinese) 魏合理,刘庆红,宋正方,等.红外辐射在雨中的衰减[J] 红外与毫米波学报, 1997, 16(6):418-424.
[8]
[9]	Oguchi T. Electromagnetic wave propagation and scattering in rain and other hydrometeors[J]. Proceedings of the IEEE, 1983, 71(9):1029-1078.
[10]
[11]	Laws J O, Parsons D A. The relation of raindrop-size to intensity[J]. Transactions, American Geophysical Union, 1943, 24:452-460.
[12]
[13]
[14]	Marshall J S, Palmer W M K. The distribution of raindrops with size[J]. Journal of Meteorology, 1948, 5(4):165-166.
[15]	Joss J, Gori E G. Shapes of raindrop size distributions[J]. Journal of Applied Meteorology, 1978, 17(7):1054-1061.
[16]
[17]
[18]	Jiang H, Sano M, Sekine M. Weibull raindrop-size distribution and its application to rain attenuation[C]//Microwaves, Antennas and Propagation, IEE Proceedings, IET, 1997, 144(3):197-200.
[19]
[20]	Qiu Shengbo, Chen Jinghua. The distribution of raindrop sizes in Guangzhou[J]. Chinese Journal of Radio Science, 1995, 10(4):73-77.(in Chinese) 仇盛柏,陈京华.广州雨滴尺寸分布[J]. 电波科学学报, 1995, 10(4):73-77.
[21]	Bielecki Z, Mikolajczyk J, Nowakowski M, et al. Free-space optics second generation[C]//Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2008, International Society for Optics and Photonics, 2008:71240I1-6.
[22]
[23]
[24]	Cong Rijin, Wang Jingyuan, Xu Zhiyong, et al. Long wave infrared transmission in atmospheric channel[J]. Infrared and Laser Engineering, 2014, 43(3):927-932.(in Chinese) 丛日进,汪井源,徐智勇,等.长波长红外大气信道传输[J] 红外与激光工程, 2014, 43(3):927-932.
[25]	Cong Rijin, Wang Jingyuan, Wang Rong, et al. Study on the attenuation of near middle and far infrared transmission in fog[J]. Laser Optoelectronics Progress, 2014, 51(8):42-47.(in Chinese) 丛日进,汪井源,王荣,等.近中远红外光在雾中的传输损耗研究[J]. 激光与光电子学进展, 2014, 51(8):42-47.
[26]
[27]	Robert J Drost, Terrence J Moore, Brian M Sadler. UV communications channel modeling incorporating multiple scattering interactions[J]. Optical Society of America, 2011, 28(4):686-695.
[28]
[29]
[30]	Haipeng Ding, Gang Chen, Arun K, et al. Modeling of non-line-of-sight ultraviolet scattering channels for communication[J]. Selected Areas in Communications, 2009, 27(9):1535-1544.
[31]	Hale G M, Querry M R. Optical constants of water in the 200 nm to 200 wavelength region[J]. Applied Optics, 1973, 12(3):555-563.

Link loss of long wavelength infrared laser propagating through rain

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Related

Proportional views