Fig. 1. Flowchart of data processing
Fig. 2. Azimuth and elevation angles of GPS satellite (T007)
Fig. 3. Number of GPS satellites and DOPs (T007)
Fig. 4. Estimated receiver clock errors; (a) TEGN and (b) T007
Fig. 5. Absolute positioning results (T007)
Fig. 6. DGPS positioning results (T007)
Fig. 7. Number of satellites after data removal
Fig. 8. Estimated receiver clock errors after data removal
Fig. 9. Receiver clock offsets detected with discriminant criterion (T007)
Fig. 10. Change rate of receiver clock errors with respect to time (TEGN)
Fig. 11. Results of interpolation using LSC; (a) original clock errors (b) interpolated clock errors
Fig. 12. Differences between the original and interpolated clock errors
Table 1. Station informations used in this study
Table 2. Statistical characteristics of DGPS positioning results (T007)
Table 3. Data spans with number of satellites information
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