GNSS multi-frequency receiver single-satellite measurement validation method
A method is presented for real-time validation of GNSS measurements of a single receiver, where data from each satellite are independently processed. A geometry- free observation model is used with a reparameterized form of the unknowns to overcome rank deficiency of the model. The ionosphere error...
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| Format: | Journal Article |
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Springer
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/5776 |
| _version_ | 1848744891158364160 |
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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 | A method is presented for real-time validation of GNSS measurements of a single receiver, where data from each satellite are independently processed. A geometry- free observation model is used with a reparameterized form of the unknowns to overcome rank deficiency of the model. The ionosphere error and non-constant biases such as multipath are assumed changing relatively smoothly as a function of time. Data validation and detection of errors are based on statistical testing of the observation residuals using the detection–identification–adaptation approach. The method is applicable to any GNSS with any number of frequencies. The performance of validation method was evaluated using multi-frequency data from three GNSS (GPS, GLONASS, and Galileo) that span 3 days in a test site at Curtin University, Australia. Performance of the method in detection and identification of outliers in code observations, and detection of cycle slips in phase data were examined. Results show that the success rates vary according to precision of observations and their number as well as size of the errors. The method capability is demonstrated when processing four IOV Galileo satellites in a single-point-positioning mode and in another test by comparing its performance with Bernese software in detection of cycle slips in precise point-positioning processing using GPS data. |
| first_indexed | 2025-11-14T06:08:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-5776 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:08:40Z |
| publishDate | 2014 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-57762019-02-19T05:34:53Z GNSS multi-frequency receiver single-satellite measurement validation method El-Mowafy, Ahmed GLONASS Quality control Multi-frequency GNSS Galileo GPS Validation A method is presented for real-time validation of GNSS measurements of a single receiver, where data from each satellite are independently processed. A geometry- free observation model is used with a reparameterized form of the unknowns to overcome rank deficiency of the model. The ionosphere error and non-constant biases such as multipath are assumed changing relatively smoothly as a function of time. Data validation and detection of errors are based on statistical testing of the observation residuals using the detection–identification–adaptation approach. The method is applicable to any GNSS with any number of frequencies. The performance of validation method was evaluated using multi-frequency data from three GNSS (GPS, GLONASS, and Galileo) that span 3 days in a test site at Curtin University, Australia. Performance of the method in detection and identification of outliers in code observations, and detection of cycle slips in phase data were examined. Results show that the success rates vary according to precision of observations and their number as well as size of the errors. The method capability is demonstrated when processing four IOV Galileo satellites in a single-point-positioning mode and in another test by comparing its performance with Bernese software in detection of cycle slips in precise point-positioning processing using GPS data. 2014 Journal Article http://hdl.handle.net/20.500.11937/5776 10.1007/s10291-013-0352-6 Springer fulltext |
| spellingShingle | GLONASS Quality control Multi-frequency GNSS Galileo GPS Validation El-Mowafy, Ahmed GNSS multi-frequency receiver single-satellite measurement validation method |
| title | GNSS multi-frequency receiver single-satellite measurement validation method |
| title_full | GNSS multi-frequency receiver single-satellite measurement validation method |
| title_fullStr | GNSS multi-frequency receiver single-satellite measurement validation method |
| title_full_unstemmed | GNSS multi-frequency receiver single-satellite measurement validation method |
| title_short | GNSS multi-frequency receiver single-satellite measurement validation method |
| title_sort | gnss multi-frequency receiver single-satellite measurement validation method |
| topic | GLONASS Quality control Multi-frequency GNSS Galileo GPS Validation |
| url | http://hdl.handle.net/20.500.11937/5776 |