Volume 36 Issue 10
Oct.  2011
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LI Wei, CHENG Pengfei, BI Jinzhong. Regional Ionosphere Delays' Calibration and Accuracy Assessment Based on Uncombined Precise Point Positioning[J]. Geomatics and Information Science of Wuhan University, 2011, 36(10): 1200-1203.
Citation: LI Wei, CHENG Pengfei, BI Jinzhong. Regional Ionosphere Delays' Calibration and Accuracy Assessment Based on Uncombined Precise Point Positioning[J]. Geomatics and Information Science of Wuhan University, 2011, 36(10): 1200-1203.
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Regional Ionosphere Delays' Calibration and Accuracy Assessment Based on Uncombined Precise Point Positioning

  • 1 School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China;2 Chinese Academic of Surveying and Mapping,16 Beitaiping Road,Beijing 100830,China

Funds: 国家自然科学基金资助项目(40874012,40974008,41074014);中央高校基本科研业务费专项基金资助项目;国家863计划资助项目(2011AA120503863)
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  • Received Date: September 11, 2011
  • Published Date: October 04, 2011
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    • Abstract
  • A new method of regional ionosphere delays' calibration based on uncombined precise point positioning(PPP) is proposed in this paper,and the accuracy is assessed by interpolating the calibrated delays at a user station with single frequency simulated kinematic PPP implementation.The results show that the accuracy of interpolation is better than 1 dm and less affected by the ionosphere activity;the positioning accuracy of single frequency simulated kinematic PPP are 4~5 cm for panel and better than 1 dm for vertical respectively.Comparatively,two reference solutions are also obtained in single frequency simulated kinematic PPP mode,with eliminating ionosphere delays either by forming semi-combination observations or interpolated values from global ionosphere maps(GIM),the positioning accuracy of both cases are approximately 4~7 dm and 1 m for the panel and vertical respectively.
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