Improving DGNSS Performance through the Use of Network RTK Corrections
The differential global navigation satellite system (DGNSS) is an enhancement system that is widely used to improve the accuracy of single-frequency receivers. However, distance-dependent errors are not considered in conventional DGNSS, and DGNSS accuracy decreases when baseline length increases. In...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/13/9/1621 |
| _version_ | 1797536929343864832 |
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| author | Duojie Weng Shengyue Ji Yangwei Lu Wu Chen Zhihua Li |
| author_facet | Duojie Weng Shengyue Ji Yangwei Lu Wu Chen Zhihua Li |
| author_sort | Duojie Weng |
| collection | DOAJ |
| description | The differential global navigation satellite system (DGNSS) is an enhancement system that is widely used to improve the accuracy of single-frequency receivers. However, distance-dependent errors are not considered in conventional DGNSS, and DGNSS accuracy decreases when baseline length increases. In network real-time kinematic (RTK) positioning, distance-dependent errors are accurately modelled to enable ambiguity resolution on the user side, and standard Radio Technical Commission for Maritime Services (RTCM) formats have also been developed to describe the spatial characteristics of distance-dependent errors. However, the network RTK service was mainly developed for carrier-phase measurements on professional user receivers. The purpose of this study was to modify the local-area DGNSS through the use of network RTK corrections. Distance-dependent errors can be reduced, and accuracy for a longer baseline length can be improved. The results in the low-latitude areas showed that the accuracy of the modified DGNSS could be improved by more than 50% for a 17.9 km baseline during solar active years. The method in this paper extends the use of available network RTK corrections with high accuracy to normal local-area DGNSS applications. |
| first_indexed | 2024-03-10T12:07:50Z |
| format | Article |
| id | doaj.art-a459640d9d9a45a8bed3a470a5f03423 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T12:07:50Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-a459640d9d9a45a8bed3a470a5f034232023-11-21T16:29:38ZengMDPI AGRemote Sensing2072-42922021-04-01139162110.3390/rs13091621Improving DGNSS Performance through the Use of Network RTK CorrectionsDuojie Weng0Shengyue Ji1Yangwei Lu2Wu Chen3Zhihua Li4Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen 518063, ChinaCollege of Oceanography and Space Informatics, China University of Petroleum (East China), Qingdao 266580, ChinaShenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen 518063, ChinaDepartment of Land Surveying and Geo-Informatics, Hong Kong Polytechnic University, Hong Kong, ChinaCollege of Energy and Electrical Engineering, Hohai University, Nanjing 211100, ChinaThe differential global navigation satellite system (DGNSS) is an enhancement system that is widely used to improve the accuracy of single-frequency receivers. However, distance-dependent errors are not considered in conventional DGNSS, and DGNSS accuracy decreases when baseline length increases. In network real-time kinematic (RTK) positioning, distance-dependent errors are accurately modelled to enable ambiguity resolution on the user side, and standard Radio Technical Commission for Maritime Services (RTCM) formats have also been developed to describe the spatial characteristics of distance-dependent errors. However, the network RTK service was mainly developed for carrier-phase measurements on professional user receivers. The purpose of this study was to modify the local-area DGNSS through the use of network RTK corrections. Distance-dependent errors can be reduced, and accuracy for a longer baseline length can be improved. The results in the low-latitude areas showed that the accuracy of the modified DGNSS could be improved by more than 50% for a 17.9 km baseline during solar active years. The method in this paper extends the use of available network RTK corrections with high accuracy to normal local-area DGNSS applications.https://www.mdpi.com/2072-4292/13/9/1621DGNSSnetwork RTKaccuracydistance-dependent errors |
| spellingShingle | Duojie Weng Shengyue Ji Yangwei Lu Wu Chen Zhihua Li Improving DGNSS Performance through the Use of Network RTK Corrections Remote Sensing DGNSS network RTK accuracy distance-dependent errors |
| title | Improving DGNSS Performance through the Use of Network RTK Corrections |
| title_full | Improving DGNSS Performance through the Use of Network RTK Corrections |
| title_fullStr | Improving DGNSS Performance through the Use of Network RTK Corrections |
| title_full_unstemmed | Improving DGNSS Performance through the Use of Network RTK Corrections |
| title_short | Improving DGNSS Performance through the Use of Network RTK Corrections |
| title_sort | improving dgnss performance through the use of network rtk corrections |
| topic | DGNSS network RTK accuracy distance-dependent errors |
| url | https://www.mdpi.com/2072-4292/13/9/1621 |
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