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1.064 μm脉冲激光在雾中传输的蒙特卡洛模拟

Monte Carlo Simulation of Propagation of 1.064 μm Laser Pulse in Fog

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摘要

在大气无线光通信中, 大气中的雾滴会导致激光信号严重衰减, 从而使得脉冲信号的时间展宽和能量衰减。应用蒙特卡洛多次散射模型对1.064 μm激光脉冲在雾中的传输特性进行了数值模拟。在模拟中, 基于米氏散射理论, 计算出了光在不同雾能见度下的散射相函数值, 并通过随机抽样方法得到了随机数与散射角的对应关系。与采用H-G相函数近似表示粒子对光的米氏散射特性的方法相比, 这种方法更精确。在此基础上, 模拟了不同雾环境和接收视场角下激光信号的脉冲响应特性。

Abstract

In atmospheric wireless optical communication, the droplets in atmosphere may cause laser signals to attenuate severely, thus resulting in the attenuation of the temporal spread and energy of pulse signals. A Monte Carlo method is used to simulate the transmission of 1.064 μm laser pulses in fog. In the simulation, the scattering phase function values of light in the fog with different visibility are calculated according to the Mie scattering theory. The corresponding relationbetween the random number and the scattering angle is obtained through random sampling. Compared with the method in which the H-G phase function is used to represent the Mie scattering characteristics of particles to light approximately, this method is more accurate. On this basis, the impulse response characteristics of laser signals at different receiving view angles under different fog environment are simulated.

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中图分类号:O242

DOI:10.3969/j.issn.1672-8785.2014.09.008

基金项目:教育部新世纪优秀人才支持计划(批准号:NECT-10-0702 )、国家重点基础研究发展计划(973计划)(批准号:2013CB328904)、高等学校博士学科点专项科研基金(批准号:20110184110016)

收稿日期:2014-07-02

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作者单位    点击查看

董飞彪:西南交通大学电磁场与微波技术研究所, 四川 成都 610031
林文斌:西南交通大学电磁场与微波技术研究所, 四川 成都 610031

联系人作者:董飞彪(727906321@qq.com)

备注:董飞彪(1990-), 男, 安徽阜阳人, 硕士研究生, 主要从事计算电磁学、阵列天线综合方面的研究。

【1】Rensch D B, Long R K. Comparative Studies of Extinction and Backscattering by Aerosols, Fog and Rain at 10.6m and 0.63m [J]. Applied Optics, 1970, 9(7): 1563-1573.

【2】宋方正.应用大气光学基础 [M]. 北京:气象出版社, 1990.

【3】Binzoni T, Leung T S, Grandjbakhche A H, et al. The Use of the Henyey-Greenstein Phase Function in Monte Carlo Simulation in Biomedical Optics [J]. Phys Med Biol, 2006, 51(17): 313-322.

【4】赵振维, 林乐科, 董庆生, 等. 雾的雷达后向散射特性研究 [J].电波科学学报, 2001, 16(4): 498-502

【5】Zhao Z W, Wu Z S. Millimeter Wave Attenuation Due to Fog and Clouds [J].International Journal of Infrared and Millimeter Waves, 2000, 21(10): 1607-1614.

【6】柯熙政, 马冬冬, 刘佳妮. 激光在雾中传输的衰减研究 [J].光散射学报, 2009, 21(2): 104-109.

【7】Hulst H C. Light Scattering by Small Particles [M]. New York: Dover Publication, 1981: 330-350.

【8】Lathrop K D. Use of Discrete-ordinates Methods for Solution of Photon Transport Problems [J].Nuclear Science and Engineering, 1966, 24(4): 381-388.

【9】黄朝军, 刘亚锋, 吴振森,等. 烟尘中电磁波传输特性的Monte Carlo模拟 [J].物理学报, 2009, 58(4):2397-2402

【10】Tang S J, Dong Y H, Zhang X D. On Impulse Response for Underwater Wireless Optical Communication Links [C].In Proc. 2013 IEEE/MTS OCEANS Conf, 2013: 1-4.

【11】Berrocal E, Jermy M, Meglinski I V. New Monte Carlo Model of Laser Radiation Propagation in Sprays, Aerosols and Other Complex Polydisperse Turbid Media [C].SPIE, 2006, 6163: 1-4.

【12】Prahl S A, Keijzer M, Jacques S L, et al. A Monte Carlo Model of Light Propagation in Tissue [C]. SPIE Proceedings, 1989,IS 5: 102-111.

引用该论文

DONG Fei-Biao,LIN Wen-Bin. Monte Carlo Simulation of Propagation of 1.064 μm Laser Pulse in Fog[J]. INFRARED, 2014, 35(9): 37-42

董飞彪,林文斌. 1.064 μm脉冲激光在雾中传输的蒙特卡洛模拟[J]. 红外, 2014, 35(9): 37-42

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