Volume 34 Issue 7
Jul.  2009
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WANG Xingtao, LI Xiaoyan. Analysis of Errors for Earth Gravity Field Recovered by SST-LL[J]. Geomatics and Information Science of Wuhan University, 2009, 34(7): 770-773.
Citation: WANG Xingtao, LI Xiaoyan. Analysis of Errors for Earth Gravity Field Recovered by SST-LL[J]. Geomatics and Information Science of Wuhan University, 2009, 34(7): 770-773.
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Analysis of Errors for Earth Gravity Field Recovered by SST-LL

  • 1 Xi'an Research Institute of Surveying and Mapping,1 Middle Section,Yanta Road,Xi'an 710054,China

Funds: 国家自然科学基金资助项目(40804001,40604003)
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  • Received Date: May 06, 2009
  • Revised Date: May 06, 2009
  • Published Date: July 04, 2009
    Graphical Abstract
    • Abstract
  • Based on dynamic integration approach,the effects of main payloads measurement errors in SST-LL mode on Earth gravity model accuracy are analyzed quantitatively by simulated calculation.The results indicate that the gravity model error caused by inter-satellite range-rate of 1 μm/s and the one caused by non-conservative force error of 10-9 m/s2 are at the same level.The measurement accuracy of main payloads should be coincide each other.It is less helpful for improving the Earth gravity model by only improving one payload's measurement accuracy.
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