Analysis of Characteristics for Inter-System Bias on Multi-GNSS Undifferenced and Uncombined Precise Point Positioning
Multi Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP) has become the mainstream of PPP technology. Due to the differences in the coordinates and time references of each GNSS, multi-GNSS PPP must include additional Inter-System Bias (ISB) parameters to ensure compatibility b...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/9/2252 |
| _version_ | 1797601827475161088 |
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| author | Yangyang Lu Hu Yang Bo Li Jun Li Aigong Xu Mingze Zhang |
| author_facet | Yangyang Lu Hu Yang Bo Li Jun Li Aigong Xu Mingze Zhang |
| author_sort | Yangyang Lu |
| collection | DOAJ |
| description | Multi Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP) has become the mainstream of PPP technology. Due to the differences in the coordinates and time references of each GNSS, multi-GNSS PPP must include additional Inter-System Bias (ISB) parameters to ensure compatibility between different GNSSs. Therefore, research on the characteristics of ISB is also essential. To analyze the short- and long-term time characteristics of multi-GNSS ISBs, as well as their relationship with receiver type and receiver antenna type, the Undifferenced and Uncombined (UDUC) PPP model of Global Positioning System (GPS), BeiDou navigation satellite system (BDS), and Galileo satellite navigation system (Galileo) was rigorously derived, and the physical of ISBs was elaborated in depth. ISB parameters were estimated and analyzed using 31 days of data from the 31 Multi-GNSS Experimental stations (MGEX). The results indicate that: (1) the ISB value is dependent on the station receiver type, receiver antenna type, analysis center product utilized, and GNSS system. (2) The short-term time characteristics of ISB-COM, ISB-WUM, and ISB-GBM are similar for the same station but not for the long term. In addition, ISBs are more stable in the short term. (3) There is little correlation between the ISB time characteristics, the receiver type, and the receiver antenna type, and the day-boundary discontinuity(DBD) on the ISB can be ignored for the concussive days’ process. |
| first_indexed | 2024-03-11T04:08:10Z |
| format | Article |
| id | doaj.art-9e79656cb9534260b66c0fe0448c29b4 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T04:08:10Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-9e79656cb9534260b66c0fe0448c29b42023-11-17T23:37:36ZengMDPI AGRemote Sensing2072-42922023-04-01159225210.3390/rs15092252Analysis of Characteristics for Inter-System Bias on Multi-GNSS Undifferenced and Uncombined Precise Point PositioningYangyang Lu0Hu Yang1Bo Li2Jun Li3Aigong Xu4Mingze Zhang5School of Geomatics, Liaoning Technical University (LNTU), Fuxin 123000, ChinaSchool of Geomatics, Liaoning Technical University (LNTU), Fuxin 123000, ChinaSchool of Geomatics, Liaoning Technical University (LNTU), Fuxin 123000, ChinaSchool of Geomatics, Liaoning Technical University (LNTU), Fuxin 123000, ChinaSchool of Geomatics, Liaoning Technical University (LNTU), Fuxin 123000, ChinaSchool of Geomatics, Liaoning Technical University (LNTU), Fuxin 123000, ChinaMulti Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP) has become the mainstream of PPP technology. Due to the differences in the coordinates and time references of each GNSS, multi-GNSS PPP must include additional Inter-System Bias (ISB) parameters to ensure compatibility between different GNSSs. Therefore, research on the characteristics of ISB is also essential. To analyze the short- and long-term time characteristics of multi-GNSS ISBs, as well as their relationship with receiver type and receiver antenna type, the Undifferenced and Uncombined (UDUC) PPP model of Global Positioning System (GPS), BeiDou navigation satellite system (BDS), and Galileo satellite navigation system (Galileo) was rigorously derived, and the physical of ISBs was elaborated in depth. ISB parameters were estimated and analyzed using 31 days of data from the 31 Multi-GNSS Experimental stations (MGEX). The results indicate that: (1) the ISB value is dependent on the station receiver type, receiver antenna type, analysis center product utilized, and GNSS system. (2) The short-term time characteristics of ISB-COM, ISB-WUM, and ISB-GBM are similar for the same station but not for the long term. In addition, ISBs are more stable in the short term. (3) There is little correlation between the ISB time characteristics, the receiver type, and the receiver antenna type, and the day-boundary discontinuity(DBD) on the ISB can be ignored for the concussive days’ process.https://www.mdpi.com/2072-4292/15/9/2252precise point positioninginter-system biasmultiple GNSSsundifferenced and uncombinedcharacteristic analysis |
| spellingShingle | Yangyang Lu Hu Yang Bo Li Jun Li Aigong Xu Mingze Zhang Analysis of Characteristics for Inter-System Bias on Multi-GNSS Undifferenced and Uncombined Precise Point Positioning Remote Sensing precise point positioning inter-system bias multiple GNSSs undifferenced and uncombined characteristic analysis |
| title | Analysis of Characteristics for Inter-System Bias on Multi-GNSS Undifferenced and Uncombined Precise Point Positioning |
| title_full | Analysis of Characteristics for Inter-System Bias on Multi-GNSS Undifferenced and Uncombined Precise Point Positioning |
| title_fullStr | Analysis of Characteristics for Inter-System Bias on Multi-GNSS Undifferenced and Uncombined Precise Point Positioning |
| title_full_unstemmed | Analysis of Characteristics for Inter-System Bias on Multi-GNSS Undifferenced and Uncombined Precise Point Positioning |
| title_short | Analysis of Characteristics for Inter-System Bias on Multi-GNSS Undifferenced and Uncombined Precise Point Positioning |
| title_sort | analysis of characteristics for inter system bias on multi gnss undifferenced and uncombined precise point positioning |
| topic | precise point positioning inter-system bias multiple GNSSs undifferenced and uncombined characteristic analysis |
| url | https://www.mdpi.com/2072-4292/15/9/2252 |
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