Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization
This paper presents DGNSS network code positioning using permanent geodetic networks, commonly used in GNSS measurements. Using several reference stations at the same time allows for the independent control of GNSS positioning and facilitates the more realistic estimation of accuracy. Test calculati...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/19/5671 |
| _version_ | 1797551773528883200 |
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| author | Mieczysław Bakuła Marcin Uradziński Kamil Krasuski |
| author_facet | Mieczysław Bakuła Marcin Uradziński Kamil Krasuski |
| author_sort | Mieczysław Bakuła |
| collection | DOAJ |
| description | This paper presents DGNSS network code positioning using permanent geodetic networks, commonly used in GNSS measurements. Using several reference stations at the same time allows for the independent control of GNSS positioning and facilitates the more realistic estimation of accuracy. Test calculations were made on the basis of real GPS data, using one TRIMBLE mobile receiver and four nearest reference stations of the ASG-EUPOS geodetic system. In addition, DGNSS positioning computational simulations were performed for a case where one mobile GNSS receiver would be able to be used with two (e.g., GPS + Galileo or GPS + GLONASS) or four different positioning systems and different GNSS reference station systems at the same time. To reduce the deviations of the DGPS positioning from a true value, the Kalman filtering for horizontal coordinates and vertical ones was used. The result shows a significant improvement in DGPS positioning accuracy. Based on the numerical analysis carried out, it can be seen that when four GNSS systems are used, it is possible to achieve a DGNSS accuracy of 0.1 m and 0.2 m for horizontal and height coordinates, respectively, using only code measurements. Additionally, the paper presents the impact of the DGNSS code positioning accuracy on the effectiveness of determining ambiguities of phase observations on individual measurement epochs, using the L1–L5 observations of the GPS system and the precise and fast method of ambiguity resolution (PREFMAR). The developed DGNSS positioning methodology can be applied for reliable GNSS navigation using at least two independent GNSS systems. |
| first_indexed | 2024-03-10T15:50:44Z |
| format | Article |
| id | doaj.art-6da1471067a340669a8ed346207a8380 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T15:50:44Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-6da1471067a340669a8ed346207a83802023-11-20T16:04:29ZengMDPI AGSensors1424-82202020-10-012019567110.3390/s20195671Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity InitializationMieczysław Bakuła0Marcin Uradziński1Kamil Krasuski2Faculty of Geoengineering, University of Warmia and Mazury, 10-719 Olsztyn, PolandFaculty of Geoengineering, University of Warmia and Mazury, 10-719 Olsztyn, PolandInstitute of Navigation, Military University of Aviation, 08-521 Dęblin, PolandThis paper presents DGNSS network code positioning using permanent geodetic networks, commonly used in GNSS measurements. Using several reference stations at the same time allows for the independent control of GNSS positioning and facilitates the more realistic estimation of accuracy. Test calculations were made on the basis of real GPS data, using one TRIMBLE mobile receiver and four nearest reference stations of the ASG-EUPOS geodetic system. In addition, DGNSS positioning computational simulations were performed for a case where one mobile GNSS receiver would be able to be used with two (e.g., GPS + Galileo or GPS + GLONASS) or four different positioning systems and different GNSS reference station systems at the same time. To reduce the deviations of the DGPS positioning from a true value, the Kalman filtering for horizontal coordinates and vertical ones was used. The result shows a significant improvement in DGPS positioning accuracy. Based on the numerical analysis carried out, it can be seen that when four GNSS systems are used, it is possible to achieve a DGNSS accuracy of 0.1 m and 0.2 m for horizontal and height coordinates, respectively, using only code measurements. Additionally, the paper presents the impact of the DGNSS code positioning accuracy on the effectiveness of determining ambiguities of phase observations on individual measurement epochs, using the L1–L5 observations of the GPS system and the precise and fast method of ambiguity resolution (PREFMAR). The developed DGNSS positioning methodology can be applied for reliable GNSS navigation using at least two independent GNSS systems.https://www.mdpi.com/1424-8220/20/19/5671DGPSDGNSSdifferential positioningKalman filterPREFMAR |
| spellingShingle | Mieczysław Bakuła Marcin Uradziński Kamil Krasuski Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization Sensors DGPS DGNSS differential positioning Kalman filter PREFMAR |
| title | Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization |
| title_full | Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization |
| title_fullStr | Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization |
| title_full_unstemmed | Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization |
| title_short | Network Code DGNSS Positioning for Faster L1–L5 GPS Ambiguity Initialization |
| title_sort | network code dgnss positioning for faster l1 l5 gps ambiguity initialization |
| topic | DGPS DGNSS differential positioning Kalman filter PREFMAR |
| url | https://www.mdpi.com/1424-8220/20/19/5671 |
| work_keys_str_mv | AT mieczysławbakuła networkcodedgnsspositioningforfasterl1l5gpsambiguityinitialization AT marcinuradzinski networkcodedgnsspositioningforfasterl1l5gpsambiguityinitialization AT kamilkrasuski networkcodedgnsspositioningforfasterl1l5gpsambiguityinitialization |