Development of Precise Point Positioning Method Using Global Positioning System Measurements
Precise point positioning (PPP) is increasingly used in several parts such as monitoring of crustal movement and maintaining an international terrestrial reference frame using global positioning system (GPS) measurements. An accuracy of PPP data processing has been increased due to the use of the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
The Korean Space Science Society
2011-09-01
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| Series: | Journal of Astronomy and Space Sciences |
| Subjects: | |
| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2011/v28n3/OJOOBS_2011_v28n3_217.pdf |
| Summary: | Precise point positioning (PPP) is increasingly used in several parts such as monitoring of crustal movement and maintaining
an international terrestrial reference frame using global positioning system (GPS) measurements. An accuracy
of PPP data processing has been increased due to the use of the more precise satellite orbit/clock products. In this study
we developed PPP algorithm that utilizes data collected by a GPS receiver. The measurement error modelling including
the tropospheric error and the tidal model in data processing was considered to improve the positioning accuracy. The
extended Kalman filter has been also employed to estimate the state parameters such as positioning information and
float ambiguities. For the verification, we compared our results to other of International GNSS Service analysis center.
As a result, the mean errors of the estimated position on the East-West, North-South and Up-Down direction for the five
days were 0.9 cm, 0.32 cm, and 1.14 cm in 95% confidence level. |
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| ISSN: | 2093-5587 2093-1409 |