| 三角高程测量中大气折光影响的分析 |
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| 引用本文： | 刘念,盛新蒲.三角高程测量中大气折光影响的分析[J].测绘科学,2012,37(6):26-28,36. |
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| 作者姓名： | 刘念 盛新蒲 |
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| 作者单位： | 1. 长安大学,西安710054;国家测绘局第一地形测量队,西安710054
2. 中兵光电公司科技有限公司,北京,100176 |
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| 摘 要： | 大气折光是测绘领域数据采集时的主要误差来源之一。本文从大气折射率与大气密度的关系入手,论述了大气折光的两种形式,详细分析了大气折光对天顶距测量和光电测距的影响,进一步论证了在温度梯度逆转时刻进行观测可以有效地削弱大气折光误差对测量结果的影响。
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| 关 键 词： | 天顶距 电磁波测距 大气折光 温度梯度 逆转 |
Influence of atmospheric refraction in trigonometric leveling |
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| LIU Nian
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SHENG Xin-pu.Influence of atmospheric refraction in trigonometric leveling[J].Science of Surveying and Mapping,2012,37(6):26-28,36. |
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| Authors: | LIU Nian SHENG Xin-pu |
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| Institution: | ②(①Chang’an University,Xi’an 710054,China;②First Geography Diagraph Brigade of NASM,Xi’an 710054,China;③China North Optical-Electrical Technology Co.,Ltd.,Beijing 100176,China) |
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| Abstract: | Atmospheric refraction is the one of main error sources in surveying filed.From the relationship between the atmospheric refraction and density,this paper discussed the two forms of atmospheric refraction,and analyzed its effect on zenith angle and distance measurement.Research conclusion showed that the errors of atmospheric refraction could been weakened at the time of temperature gradient reversion. |
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| Keywords: | zenith angle EDM atmospheric refraction temperature gradient reversion |
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