| 相位不连续点数与湍流效应特征参数的关系 |
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| 引用本文： | 葛筱璐,范承玉. 相位不连续点数与湍流效应特征参数的关系[J]. 大气与环境光学学报, 2007, 2(1): 28-31 |
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| 作者姓名： | 葛筱璐 范承玉 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所大气光学中心,安徽,合肥,230031;中国科学院安徽光学精密机械研究所大气光学中心,安徽,合肥,230031 |
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| 基金项目： | 国家自然科学基金 , 中国科学院基金 |
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| 摘 要： | 利用激光大气传输四维程序对激光在大气中传输时产生的相位不连续点的数目进行了数值计算.计算结果表明,相位不连续点的数目不仅与描述光强起伏量的大气湍流强度、传输路径长度和传输光的波长有关,而且还与湍流的内尺度有关.另外,通过对湍流较弱但传输路径较长的强闪烁条件下畸变光场中出现的相位不连续点数目的计算发现,当湍流效应达到一定程度时,相位不连续点的数目有达到饱和的趋势.
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| 关 键 词： | 大气传输 湍流效应 相位不连续点 |
| 文章编号： | 1673-6141(2007)01-0028-04 |
| 收稿时间： | 2006-05-24 |
| 修稿时间： | 2006-05-24 |
Relationship Between the Number of Branch Points and the Characteristic Parameters of Turbulence Effect |
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| GE Xiao-lu,FAN Cheng-yu. Relationship Between the Number of Branch Points and the Characteristic Parameters of Turbulence Effect[J]. Journal of Atmospheric and Environmental Optics, 2007, 2(1): 28-31 |
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| Authors: | GE Xiao-lu FAN Cheng-yu |
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| Affiliation: | Center for Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | The behavior of branch point, numbers was computed by four-dimension code of laser propagation in atmosphere. Various turbulence conditions, ranging from weak to strong, are considered as well as the dependence on turbulence strength, propagation length, wavelength, and the inner scales of turbulence are presented. The computational results of strong scintillation with weak turbulence but long propagation length indicate that the number of branch points in distorted optical field has a tendency to saturation. |
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| Keywords: | propagation in atmosphere turbulence efTect branch points |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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