| 大气折射与路径弯曲延迟 |
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| 引用本文： | 童谞,萧耐园. 大气折射与路径弯曲延迟[J]. 天文学报, 2008, 49(4) |
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| 作者姓名： | 童谞 萧耐园 |
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| 作者单位： | 南京大学天文系,南京,210093 |
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| 摘 要： | 电磁波信号在地球大气中的传播受到折射的影响,传播的方向发生了改变,传播的路径变为曲线,长度大于直线距离,相应的传播时间也被延长了,采用一个简化的球对称大气模型计算了光线在不同天顶距下由于路径弯曲而引起的延迟改正.
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| 关 键 词： | 地球:大气层,天文仪器 方法与技术:大气效应 |
Atmospheric Refraction and Delay of Path Curvature |
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| TONG Xu,XIAO Nai-yuan. Atmospheric Refraction and Delay of Path Curvature[J]. Acta Astronomica Sinica, 2008, 49(4) |
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| Authors: | TONG Xu XIAO Nai-yuan |
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| Affiliation: | Department of Astronomy;Nanjing University;Nanjing 210093 |
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| Abstract: | The propagating path of electromagnetic wave through the atmosphere is affected by refraction,so the direction is changed,the path becomes a curve,the length is longer than the distance of beeline and the time is also protracted.Using a simplified spherically symmetrical model of atmosphere we calculated the corrections to delay of path curvature due to atmospheric refraction with different zenith distances. |
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| Keywords: | Earth Atmosphere Astronomical Instrumentation Methods and Techniques Atmospheric Effects |
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