| ���ڵ��κ�����Ҫ�ص�GPS�������ӳٲ�ֵ�����о� |
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| 引用本文： | 刘严萍,张立辉,张飞涟.���ڵ��κ�����Ҫ�ص�GPS�������ӳٲ�ֵ�����о�[J].大地测量与地球动力学,2013,33(3):59-63. |
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| 作者姓名： | 刘严萍 张立辉 张飞涟 |
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| 作者单位： | 1. 中南大学土木工程学院,长沙,410075
2. 黑龙江省水文地质工程地质勘察院,哈尔滨,150030 |
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| 基金项目： | 湖南省研究生科研创新项目，河北省教育厅项目，大地测量与地球动力学国家重点实验室开放基金 |
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| 摘 要： | ????InSAR????У????SAR???????????????????????????????????μ??????????????--??????κ???????????????????????????????GPS????????ж????????????????????????????????????????????????????????GPS????????????????????????mm??????????InSAR????У???????
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| 关 键 词： | ????????? ???λ?? BP?????? ??????? ??????? |
ESTIMATION OF GPS ZENITH TROPOSPHERIC DELAY BASED ON TERRAIN AND METEOROLOGICAL ELEMENTS |
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| Liu Yanping,Zhang Lihui,and Zhang Feilian.ESTIMATION OF GPS ZENITH TROPOSPHERIC DELAY BASED ON TERRAIN AND METEOROLOGICAL ELEMENTS[J].Journal of Geodesy and Geodynamics,2013,33(3):59-63. |
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| Authors: | Liu Yanping Zhang Lihui and Zhang Feilian |
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| Institution: | 1) 1)School of Civil Engineering,Central South University,Changsha 4100752)Hydrogeology and Engineering Geology Prospecting Institute of Heilongjiang Province,Haerbin 150030 |
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| Abstract: | In order to solve the problem that the InSAR atmospheric correction is limited by the number of SAR image and weather conditions, a new tropospheric delay estimation method is proposed, which is based on the terrain and meteorological elements. The zenith tropospheric delay model is constructed and the zenith tropospheric delay is estimated by taking the GPS network in Beijing as an example. The result shows that the precision of the model is similar to the GPS tropospheric delay, which is amounted to mm, and can meet the requirements of InSAR atmospheric correction. |
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| Keywords: | zenith tropospheric delay global positioning system BP neural network terrain elements meteorological elements |
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