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《Crustal Deformation and Earthquake》 2002-01
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PRECISE CALCULATION MODEL OF CORRECTION TO ATMOSPHERIC PATH CURVATURE OF SATELLITE SIGNALS

Li Yanxing,Hu Xinkang and Shuai Ping\;(No.1 Crustal Deformation Monitoring Center,CSB,Tianjin 300180)\;  
The propagating path of satellite signals through the atmosphere is a curve which is difficult to precisely plot. In order to precisely calculate the correction to its curvature we take a fold line as the approximation of 1st degree to the refractive curve,then divide the fold line into several sections.Thus the refractive curve can be approximated by circular arc.According to the above consideration, a series of strict formulae to calculate the curvature correction under the condition of different zenith distances are derived.At last, a model which is convenient and precise for calculating the curvature correction has been established.
【Fund】: 国家重点基础研究发展规划 G19980 40 70 3项目资助
【CateGory Index】: P228.9
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【References】
Chinese Journal Full-text Database 4 Hits
1 LU Xiao-pingState Bureau of Surveying and Mapping Key Laboratory of Mine Spatial Information Technologies(Henan Polytechnic University,Henan Bureau of Surveying and Mapping),Jiaozuo 454003,China;Series Expression of Correction for Curved Electromagnetic Signal Path in Troposphere[J];Acta Geodaetica et Cartographica Sinica;2008-02
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【Secondary References】
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1 SHU Haichi,ZHENG Min(Changjiang Spatial Information Technology Engineering Co.,Ltd,Wuhan 430010,China);Analysis on influence of tropospheric delay in river valley area on GPS short baseline resolution[J];Yangtze River;2010-20
2 TONG Xu XIAO Nai-yuan (Department of Astronomy,Nanjing University,Nanjing 210093);Atmospheric Refraction and Delay of Path Curvature[J];Acta Astronomica Sinica;2008-04
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