Fast Phase-Only Positioning with Triple-Frequency GPS
In this contribution, we study the phase-only ambiguity resolution and positioning performance of GPS for short baselines. It is well known that instantaneous (single-epoch) ambiguity resolution is possible when both phase and code (pseudorange) data are used. This requires, however, a benign multip...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
MDPI Publishing
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/72062 |
| _version_ | 1848762649262686208 |
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| author | Wang, Kan Chen, P. Teunissen, Peter |
| author_facet | Wang, Kan Chen, P. Teunissen, Peter |
| author_sort | Wang, Kan |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this contribution, we study the phase-only ambiguity resolution and positioning performance of GPS for short baselines. It is well known that instantaneous (single-epoch) ambiguity resolution is possible when both phase and code (pseudorange) data are used. This requires, however, a benign multipath environment due to the severe effects multipath has on the code measurements. With phase-only processing, one would be free from such severe effects, be it that phase-only processing requires a change in receiver-satellite geometry, as a consequence of which it cannot be done instantaneously. It is thus of interest to know how much change in the relative receiver-satellite geometry is needed to achieve successful phase-only ambiguity resolution with correspondingly high precision baseline solutions. In this contribution, we study the two-epoch phase-only performance of single-, dual-, and triple-frequency GPS for varying time spans from 60 s down to 1 s. We demonstrate, empirically as well as formally, that fast phase-only very-precise positioning is indeed possible, and we explain the circumstances that make this possible. The formal analyses are also performed for a large area including Australia, a part of Asia, the Indian Ocean, and the Pacific Ocean. We remark that in this contribution "phase-only" refers to phase-only measurements in the observation model, while the code data are thus only used to compute the approximate values needed for linearizing the observation equations. |
| first_indexed | 2025-11-14T10:50:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-72062 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:50:55Z |
| publishDate | 2018 |
| publisher | MDPI Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-720622020-12-03T03:52:46Z Fast Phase-Only Positioning with Triple-Frequency GPS Wang, Kan Chen, P. Teunissen, Peter In this contribution, we study the phase-only ambiguity resolution and positioning performance of GPS for short baselines. It is well known that instantaneous (single-epoch) ambiguity resolution is possible when both phase and code (pseudorange) data are used. This requires, however, a benign multipath environment due to the severe effects multipath has on the code measurements. With phase-only processing, one would be free from such severe effects, be it that phase-only processing requires a change in receiver-satellite geometry, as a consequence of which it cannot be done instantaneously. It is thus of interest to know how much change in the relative receiver-satellite geometry is needed to achieve successful phase-only ambiguity resolution with correspondingly high precision baseline solutions. In this contribution, we study the two-epoch phase-only performance of single-, dual-, and triple-frequency GPS for varying time spans from 60 s down to 1 s. We demonstrate, empirically as well as formally, that fast phase-only very-precise positioning is indeed possible, and we explain the circumstances that make this possible. The formal analyses are also performed for a large area including Australia, a part of Asia, the Indian Ocean, and the Pacific Ocean. We remark that in this contribution "phase-only" refers to phase-only measurements in the observation model, while the code data are thus only used to compute the approximate values needed for linearizing the observation equations. 2018 Journal Article http://hdl.handle.net/20.500.11937/72062 10.3390/s18113922 http://creativecommons.org/licenses/by/4.0/ MDPI Publishing fulltext |
| spellingShingle | Wang, Kan Chen, P. Teunissen, Peter Fast Phase-Only Positioning with Triple-Frequency GPS |
| title | Fast Phase-Only Positioning with Triple-Frequency GPS |
| title_full | Fast Phase-Only Positioning with Triple-Frequency GPS |
| title_fullStr | Fast Phase-Only Positioning with Triple-Frequency GPS |
| title_full_unstemmed | Fast Phase-Only Positioning with Triple-Frequency GPS |
| title_short | Fast Phase-Only Positioning with Triple-Frequency GPS |
| title_sort | fast phase-only positioning with triple-frequency gps |
| url | http://hdl.handle.net/20.500.11937/72062 |