| 星载激光测高仪大气传输延迟对测距精度的影响 |
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| 引用本文： | 赵欣,张毅,赵平建,涂碧海.星载激光测高仪大气传输延迟对测距精度的影响[J].红外与激光工程,2011,40(3):438-442. |
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| 作者姓名： | 赵欣 张毅 赵平建 涂碧海 |
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| 作者单位： | 中国科学院合肥物质科学研究院安徽光学精密机械研究所,安徽,合肥,230031 |
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| 基金项目： | 中国科学院合肥物质研究院院长基金资助项目 |
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| 摘 要： | 地球表层的大气折射可对激光测高仪的激光脉冲传输造成延迟,该延迟对激光飞行时间的测量精度以及地球表面三维轮廓的监测造成显著影响.因此,激光测高仪测距精度需要通过大气传播误差函数进行修正.着重讨论了激光脉冲基于天顶延迟的计算方法和相关映射函数模型的选择,并采用NMF连分式映射函数分别对干项和湿项进行计算.结果表明,在1.0...
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| 关 键 词： | 激光测高 大气延迟 映射函数 天顶延迟 |
Influence of atmospheric transmission delay of satellite laser altimeter on ranging precision |
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| Zhao Xin,Zhang Yi,Zhao Pingjian,Tu Bihai.Influence of atmospheric transmission delay of satellite laser altimeter on ranging precision[J].Infrared and Laser Engineering,2011,40(3):438-442. |
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| Authors: | Zhao Xin Zhang Yi Zhao Pingjian Tu Bihai |
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| Institution: | Zhao Xin,Zhang Yi,Zhao Pingjian,Tu Bihai(Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China) |
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| Abstract: | Atmospheric delay of laser pulse is the dominant error source for high precision range measurements of laser altimeter arisen from atmospheric refraction,the error source will greatly influence the measurement precision for pulse laser flight time,and faulty estimation in the three-dimension prediction.So the atmospheric model is needed to correct the propagation delay of the laser transmission in air.How to calculate the ray paths delay in atmosphere near zenith was presented,and some models of relative ma... |
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| Keywords: | laser altimeter atmospheric delay map function zenith delay |
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