Advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases
Most current Advanced Receiver Autonomous Integrity Monitoring (ARAIM) methods are designed to use dual-frequency ionosphere-free observations. These methods assume that receiver bias is absorbed in the common receiver clock offset and bound satellite biases by nominal values. However, most multi-co...
| Main Author: | |
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| Format: | Journal Article |
| Published: |
Elsevier Ltd
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/50625 |
| _version_ | 1848758508338544640 |
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| author | El-Mowafy, Ahmed |
| author_facet | El-Mowafy, Ahmed |
| author_sort | El-Mowafy, Ahmed |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Most current Advanced Receiver Autonomous Integrity Monitoring (ARAIM) methods are designed to use dual-frequency ionosphere-free observations. These methods assume that receiver bias is absorbed in the common receiver clock offset and bound satellite biases by nominal values. However, most multi-constellation Global Navigation Satellite Systems (GNSS) can offer triple frequency data that can be used for civilian applications in the future, which can improve observation redundancy, solution precision and detection of faults. In this contribution, we explore the use of this type of observations from GPS, Galileo and BeiDou in ARAIM. Nevertheless, the use of triple frequency data introduces receiver differential biases that have to be taken into consideration. To demonstrate the significance of these additional biases we first present a method to quantify them at stations of known coordinates and using available products from the International GNSS service (IGS). To deal with the additional receiver biases, we use a between-satellite single difference (BSSD) observation model that eliminates their effect. A pilot test was performed to evaluate ARAIM availability for Localizer Performance with Vertical guidance down to 200. feet (LPV-200) when using the triple-frequency observations. Real data were collected for one month at stations of known coordinates located in regions of different satellite coverage characteristics. The BSSD triple-frequency model was evaluated to give early indication about its feasibility, where the implementation phase still requires further comprehensive studies. The vertical position error was always found to be bounded by the protection level proven initial validity of the proposed integrity model. © 2017 COSPAR. |
| first_indexed | 2025-11-14T09:45:06Z |
| format | Journal Article |
| id | curtin-20.500.11937-50625 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:45:06Z |
| publishDate | 2016 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-506252019-02-12T01:20:22Z Advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases El-Mowafy, Ahmed Most current Advanced Receiver Autonomous Integrity Monitoring (ARAIM) methods are designed to use dual-frequency ionosphere-free observations. These methods assume that receiver bias is absorbed in the common receiver clock offset and bound satellite biases by nominal values. However, most multi-constellation Global Navigation Satellite Systems (GNSS) can offer triple frequency data that can be used for civilian applications in the future, which can improve observation redundancy, solution precision and detection of faults. In this contribution, we explore the use of this type of observations from GPS, Galileo and BeiDou in ARAIM. Nevertheless, the use of triple frequency data introduces receiver differential biases that have to be taken into consideration. To demonstrate the significance of these additional biases we first present a method to quantify them at stations of known coordinates and using available products from the International GNSS service (IGS). To deal with the additional receiver biases, we use a between-satellite single difference (BSSD) observation model that eliminates their effect. A pilot test was performed to evaluate ARAIM availability for Localizer Performance with Vertical guidance down to 200. feet (LPV-200) when using the triple-frequency observations. Real data were collected for one month at stations of known coordinates located in regions of different satellite coverage characteristics. The BSSD triple-frequency model was evaluated to give early indication about its feasibility, where the implementation phase still requires further comprehensive studies. The vertical position error was always found to be bounded by the protection level proven initial validity of the proposed integrity model. © 2017 COSPAR. 2016 Journal Article http://hdl.handle.net/20.500.11937/50625 10.1016/j.asr.2017.01.037 Elsevier Ltd fulltext |
| spellingShingle | El-Mowafy, Ahmed Advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases |
| title | Advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases |
| title_full | Advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases |
| title_fullStr | Advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases |
| title_full_unstemmed | Advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases |
| title_short | Advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases |
| title_sort | advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases |
| url | http://hdl.handle.net/20.500.11937/50625 |