Precise Orbit Determination of GPS Satellites Using Phase Observables
The accuracy of user position by GPS is heavily dependent upon the accuracy of satellite position which is usually transmitted to GPS users in radio signals. The real-time satellite position information directly obtained from broadcast ephimerides has the accuracy of 3 x 10 meters which is very unsa...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Korean Space Science Society
1997-12-01
|
| Series: | Journal of Astronomy and Space Sciences |
| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1997/v14n2/OJOOBS_1997_v14n2_375.pdf |
| _version_ | 1797329413288755200 |
|---|---|
| author | Myung-Kook Jee Kyu-Hong Choi Pil-Ho Park |
| author_facet | Myung-Kook Jee Kyu-Hong Choi Pil-Ho Park |
| author_sort | Myung-Kook Jee |
| collection | DOAJ |
| description | The accuracy of user position by GPS is heavily dependent upon the accuracy of satellite position which is usually transmitted to GPS users in radio signals. The real-time satellite position information directly obtained from broadcast ephimerides has the accuracy of 3 x 10 meters which is very unsatisfactory to measure 100km baseline to the accuracy of less than a few mili-meters. There are globally at present seven orbit analysis centers capable of generating precise GPS ephimerides and their orbit quality is of the order of about 10cm. Therefore, precise orbit model and phase processing technique were reviewed and consequently precise GPS ephimerides were produced after processing the phase observables of 28 global GPS stations for 1 day. Initial 6 orbit parameters and 2 solar radiation coefficients were estimated using batch least square algorithm and the final results were compared with the orbit of IGS, the International GPS Service for Geodynamics. |
| first_indexed | 2024-03-08T07:05:20Z |
| format | Article |
| id | doaj.art-03552930a7844502b63a3a8df080e5a7 |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T07:05:20Z |
| publishDate | 1997-12-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-03552930a7844502b63a3a8df080e5a72024-02-03T04:54:10ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14091997-12-01142375380Precise Orbit Determination of GPS Satellites Using Phase ObservablesMyung-Kook Jee0Kyu-Hong Choi1Pil-Ho Park2Department of Astronomy and Atmospheric Science, Yonsei University, Seoul 120-749Department of Astronomy and Atmospheric Science, Yonsei University, Seoul 120-749Korea Astronomy Observatory, Taejon 305-348, KoreaThe accuracy of user position by GPS is heavily dependent upon the accuracy of satellite position which is usually transmitted to GPS users in radio signals. The real-time satellite position information directly obtained from broadcast ephimerides has the accuracy of 3 x 10 meters which is very unsatisfactory to measure 100km baseline to the accuracy of less than a few mili-meters. There are globally at present seven orbit analysis centers capable of generating precise GPS ephimerides and their orbit quality is of the order of about 10cm. Therefore, precise orbit model and phase processing technique were reviewed and consequently precise GPS ephimerides were produced after processing the phase observables of 28 global GPS stations for 1 day. Initial 6 orbit parameters and 2 solar radiation coefficients were estimated using batch least square algorithm and the final results were compared with the orbit of IGS, the International GPS Service for Geodynamics.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1997/v14n2/OJOOBS_1997_v14n2_375.pdf |
| spellingShingle | Myung-Kook Jee Kyu-Hong Choi Pil-Ho Park Precise Orbit Determination of GPS Satellites Using Phase Observables Journal of Astronomy and Space Sciences |
| title | Precise Orbit Determination of GPS Satellites Using Phase Observables |
| title_full | Precise Orbit Determination of GPS Satellites Using Phase Observables |
| title_fullStr | Precise Orbit Determination of GPS Satellites Using Phase Observables |
| title_full_unstemmed | Precise Orbit Determination of GPS Satellites Using Phase Observables |
| title_short | Precise Orbit Determination of GPS Satellites Using Phase Observables |
| title_sort | precise orbit determination of gps satellites using phase observables |
| url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1997/v14n2/OJOOBS_1997_v14n2_375.pdf |
| work_keys_str_mv | AT myungkookjee preciseorbitdeterminationofgpssatellitesusingphaseobservables AT kyuhongchoi preciseorbitdeterminationofgpssatellitesusingphaseobservables AT pilhopark preciseorbitdeterminationofgpssatellitesusingphaseobservables |