| 大气折射率结构常数和湍流特征谱的计算 |
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| 引用本文： | 梅海平,饶瑞中,吴晓庆,朱文越.大气折射率结构常数和湍流特征谱的计算[J].强激光与粒子束,2003,15(12):1155-1158. |
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| 作者姓名： | 梅海平 饶瑞中 吴晓庆 朱文越 |
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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 |
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| 基金项目： | SupportedbyNational 863Programitem |
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| 摘 要： | 分析了海面边界层大气湍流温度脉动的统计特征，结果表明：虚温的功率谱是随时间而演变的，表现在其标度指数随时间变化；比较了不同统计时间下计算的大气折射率结构常数，并根据大气状态的实时变化提出了一种计算折射率结构常数的变间隔时间平均算法。
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| 关 键 词： | 概率分布 功率谱 折射率结构常数 变间隔时间平均 |
| 收稿时间： | 2003/9/12 |
Evaluating refractive index structure constant and characterizing spectrum of atmospheric turbulence |
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| Abstract.Evaluating refractive index structure constant and characterizing spectrum of atmospheric turbulence[J].High Power Laser and Particle Beams,2003,15(12):1155-1158. |
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| Authors: | Abstract |
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| Institution: | Anhui Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences, P.O.Box 1125, Hefei 230031, China |
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| Abstract: | Characteristics of temperature's fluctuation measured at the maritime atmospheric surface layer is analyzed. The result is that the power spectrum of virtual temperature varies with time. Then refractive index structure constant evaluated with different average times are compared. In the end, an algorithm according to the inherent state's changing of the atmosphere is built to estimate refrective index structure constant. |
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| Keywords: | Probability distribution Power spectrum Refractive-index structure constant Varying interval time average |
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