| 激光在云层中传输的特性分析及蒙特卡罗模拟 |
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| 引用本文： | 杨虹,杨小丽,田永洪.激光在云层中传输的特性分析及蒙特卡罗模拟[J].激光技术,2008,32(5):477-479,489. |
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| 作者姓名： | 杨虹 杨小丽 田永洪 |
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| 作者单位： | 1. 电子科技大学,物理电子学院,成都,610054
2. 电子科技大学,计算机科学与工程学院,成都,610054 |
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| 摘 要： | 为了研究激光在云层中传输的多次散射特性,分析了传输过程中的功率损耗,并采用蒙特卡罗法模拟传输过程,得出时间展宽后的脉冲波形.结果表明,时间展宽后的脉冲具有陡峭的上升沿和指数形式的收尾;非对称因子、云层物理厚度、消光系数、接收视场角等对时间展宽都有影响,其中,非对称因子、云层物理厚度对时间展宽及时间延迟影响较大.
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| 关 键 词： | 大气与海洋光学 散射 时间展宽 蒙特卡罗模拟 云层介质 |
| 收稿时间： | 2007/6/6 |
Analysis of characteristics of light propagation through clouds and Monte Carlo simulation |
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| YANG Hong,YANG Xiao-li,TIAN Yong-hong.Analysis of characteristics of light propagation through clouds and Monte Carlo simulation[J].Laser Technology,2008,32(5):477-479,489. |
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| Authors: | YANG Hong YANG Xiao-li TIAN Yong-hong |
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| Affiliation: | YANG Hong1,YANG Xiao-li1,TIAN Yong-hong2(1.School of Physical Electronics,University of Electronic Science , Technology of China,Chengdu 610054,China,2.School of Computer Science , Engineering,Chengdu,610054,China) |
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| Abstract: | In order to study the multiple scattering characteristics of light propagation through clouds,received power was analyzed,the laser transferring process in clouds was simulated with Monte Carlo method,and the waveform broadened temporal signal was obtained.Results illustrate the broadened signal has a steep rise edge followed by an exponential tail,and that the broadened shape is affected by some parameters such as asymmetry factor,clouds thickness,extinction coefficients,receiver field of view,especially s... |
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| Keywords: | atmospheric and ocean optics scattering temporal broadening Monte Carlo simulation clouds medium |
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