Array-aided single-differenced satellite phase bias determination: Methodology and results
Integer ambiguity resolution at a single GNSS receiver gets feasible, if network-derived satellite phase biases (SPBs), among other corrections, are a-priori available. In this paper, the concept of array-aided between-satellite single-differenced (SD) SPB determination is introduced which is aimed...
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| Format: | Conference Paper |
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Institute of Navigation
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/8711 |
| _version_ | 1848745738074324992 |
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| author | Khodabandeh, Amir |
| author_facet | Khodabandeh, Amir |
| author_sort | Khodabandeh, Amir |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Integer ambiguity resolution at a single GNSS receiver gets feasible, if network-derived satellite phase biases (SPBs), among other corrections, are a-priori available. In this paper, the concept of array-aided between-satellite single-differenced (SD) SPB determination is introduced which is aimed to reduce the code-dominated precision of SD-SPB corrections. The underlying model is realized by giving the role of the local reference network to an array of antennas, mounted on rigid platforms, that are separated by a few meters only. A closed-form expression of the array-aided SD-SPB corrections is presented, thereby proposing a simple strategy to compute the SD- SPBs. Upon resolving double-differenced ambiguities of the array's data, the variance of the SD-SPB corrections is shown to be reduced by a factor equal to the number of antennas. This improvement in precision is also affirmed by numerical results. Experimental results demonstrate that the user's integer-recovered ambiguities converge to integers faster, upon increasing the number of antennas aiding the SD-SPB corrections. Integrated with the ionospheric corrections, the stated SD-SPB corrections carry over the precision improvement to the user's position as well. |
| first_indexed | 2025-11-14T06:22:07Z |
| format | Conference Paper |
| id | curtin-20.500.11937-8711 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:22:07Z |
| publishDate | 2014 |
| publisher | Institute of Navigation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-87112017-01-30T11:08:17Z Array-aided single-differenced satellite phase bias determination: Methodology and results Khodabandeh, Amir Integer ambiguity resolution at a single GNSS receiver gets feasible, if network-derived satellite phase biases (SPBs), among other corrections, are a-priori available. In this paper, the concept of array-aided between-satellite single-differenced (SD) SPB determination is introduced which is aimed to reduce the code-dominated precision of SD-SPB corrections. The underlying model is realized by giving the role of the local reference network to an array of antennas, mounted on rigid platforms, that are separated by a few meters only. A closed-form expression of the array-aided SD-SPB corrections is presented, thereby proposing a simple strategy to compute the SD- SPBs. Upon resolving double-differenced ambiguities of the array's data, the variance of the SD-SPB corrections is shown to be reduced by a factor equal to the number of antennas. This improvement in precision is also affirmed by numerical results. Experimental results demonstrate that the user's integer-recovered ambiguities converge to integers faster, upon increasing the number of antennas aiding the SD-SPB corrections. Integrated with the ionospheric corrections, the stated SD-SPB corrections carry over the precision improvement to the user's position as well. 2014 Conference Paper http://hdl.handle.net/20.500.11937/8711 Institute of Navigation restricted |
| spellingShingle | Khodabandeh, Amir Array-aided single-differenced satellite phase bias determination: Methodology and results |
| title | Array-aided single-differenced satellite phase bias determination: Methodology and results |
| title_full | Array-aided single-differenced satellite phase bias determination: Methodology and results |
| title_fullStr | Array-aided single-differenced satellite phase bias determination: Methodology and results |
| title_full_unstemmed | Array-aided single-differenced satellite phase bias determination: Methodology and results |
| title_short | Array-aided single-differenced satellite phase bias determination: Methodology and results |
| title_sort | array-aided single-differenced satellite phase bias determination: methodology and results |
| url | http://hdl.handle.net/20.500.11937/8711 |