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Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)

Editor
Baosong Ma
Baosong Ma
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ISBN:
9780791802922
No. of Pages:
1760
Publisher:
ASME Press
Publication date:
2009

The nominal accuracy of PDA GPS is ±10m, however, the results of experiment show that its practical absolute positioning accuracy is approximately ±80m and its stability of real-time positioning is ±30m. In addition, the positioning accuracy can reach about ±5m in 5 minutes. The main factors of position error are systematic error and gross error. The observation condition is the root of gross error, like unsatisfactory satellite intervisibility condition. While atmospheric delay of the GPS positioning satellite and positioning signal cause the systematic error. The key contents of this paper are the relations between the PDA GPS positioning accuracy and...

Abstract
Introduction
Research Content of PDA GPS' Positioning Error and Data Collection
Test on Absolute Positioning Accuracy of PDA GPS
Test on Relative Positioning Accuracy of PDA GPS
Single Point Positioning Systematic Error Correction of PDA GPS
Conclusion
References
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