| 高斯光束大气闪烁空间分布的数值模拟研究 |
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| 引用本文： | 钱仙妹,饶瑞中. 高斯光束大气闪烁空间分布的数值模拟研究[J]. 量子电子学报, 2006, 23(3): 320-324 |
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| 作者姓名： | 钱仙妹 饶瑞中 |
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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研究室,安徽,合肥,230031 |
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| 摘 要： | 利用数值模拟方法研究了高斯光束在弱湍流大气中闪烁的空间分布问题.详细给出了计算闪烁指数的方法,分析得出了闪烁指数空间分布的一般特征:闪烁指数在光轴上最小,随着离开光轴距离的增大而增大.模拟结果与Rytov理论预期的结果基本吻合,从而验证了两种方法的可靠性.
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| 关 键 词： | 大气光学 激光大气传输 闪烁效应 数值模拟 高斯光束 |
| 文章编号： | 1007-5461（2006）03-0320-05 |
| 收稿时间： | 2005-06-03 |
| 修稿时间： | 2005-07-12 |
Spatial distribution of Gaussian-beam scintillation in atmosphere by numerical simulation |
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| QIAN Xian-mei,RAO Rui-zhong. Spatial distribution of Gaussian-beam scintillation in atmosphere by numerical simulation[J]. Chinese Journal of Quantum Electronics, 2006, 23(3): 320-324 |
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| Authors: | QIAN Xian-mei RAO Rui-zhong |
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| Abstract: | The spatial distribution characteristics of the scintillation of a Gaussian-beam propagating in a weak turbulent atmosphere are studied with a numerical simulation algorithm. The evaluation procedure of the scintillation index is investigated thoroughly. It is found that the off-axis scintillation index increases with the off-axis distance and the minimum is on the optical axis. The agreement between results of numerical simulations and the theoretical results validates the reliability of both methods. |
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| Keywords: | atmospheric optics laser propagation in atmosphere scintillation numerical simulation Gaussian-beam |
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