An Approach to Improve the Positioning Performance of GPS/INS/UWB Integrated System with Two-Step Filter
The integration of Inertial Navigation System (INS) and Global Positioning System (GPS) single-point-positioning (SPP) mode cannot meet the requirements of high-accuracy navigation. Range observation through ultra-wideband (UWB) is an effective means to enhance the reliability and accuracy of GPS/IN...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-12-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/10/1/19 |
| _version_ | 1819294121076981760 |
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| author | Zengke Li Ren Wang Jingxiang Gao Jian Wang |
| author_facet | Zengke Li Ren Wang Jingxiang Gao Jian Wang |
| author_sort | Zengke Li |
| collection | DOAJ |
| description | The integration of Inertial Navigation System (INS) and Global Positioning System (GPS) single-point-positioning (SPP) mode cannot meet the requirements of high-accuracy navigation. Range observation through ultra-wideband (UWB) is an effective means to enhance the reliability and accuracy of GPS/INS integrated navigation, particularly in environments where GPS availability is poor. Because it is difficult for UWB signal to achieve large-scale intervention coverage, an enhanced GPS/INS/UWB integrated scheme with positioning error correction is proposed to improve the position accuracy in the UWB signal outage scenario. The position difference between the GPS/INS integrated solution and the GPS/INS/UWB integrated solution is predicated as the error correction for GPS/INS/UWB integrated navigation in a UWB signal challenging environment. Position correction information in the north and east directions is input to the two-step filter to decrease the error of GPS/INS integrated navigation in single-point-positioning. In order to validate the proposed method, a real experiment is conducted. The results indicate that the enhanced GPS/INS/UWB integrated scheme with positioning error correction is able to improve the position accuracy of GPS/INS/UWB integrated navigation when UWB signal is unavailable. |
| first_indexed | 2024-12-24T04:21:17Z |
| format | Article |
| id | doaj.art-df7ee7323691496f8836dbcf6e1a7020 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-12-24T04:21:17Z |
| publishDate | 2017-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-df7ee7323691496f8836dbcf6e1a70202022-12-21T17:15:48ZengMDPI AGRemote Sensing2072-42922017-12-011011910.3390/rs10010019rs10010019An Approach to Improve the Positioning Performance of GPS/INS/UWB Integrated System with Two-Step FilterZengke Li0Ren Wang1Jingxiang Gao2Jian Wang3School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, ChinaThe integration of Inertial Navigation System (INS) and Global Positioning System (GPS) single-point-positioning (SPP) mode cannot meet the requirements of high-accuracy navigation. Range observation through ultra-wideband (UWB) is an effective means to enhance the reliability and accuracy of GPS/INS integrated navigation, particularly in environments where GPS availability is poor. Because it is difficult for UWB signal to achieve large-scale intervention coverage, an enhanced GPS/INS/UWB integrated scheme with positioning error correction is proposed to improve the position accuracy in the UWB signal outage scenario. The position difference between the GPS/INS integrated solution and the GPS/INS/UWB integrated solution is predicated as the error correction for GPS/INS/UWB integrated navigation in a UWB signal challenging environment. Position correction information in the north and east directions is input to the two-step filter to decrease the error of GPS/INS integrated navigation in single-point-positioning. In order to validate the proposed method, a real experiment is conducted. The results indicate that the enhanced GPS/INS/UWB integrated scheme with positioning error correction is able to improve the position accuracy of GPS/INS/UWB integrated navigation when UWB signal is unavailable.https://www.mdpi.com/2072-4292/10/1/19ultra-widebandGPS/INS/UWB integrated systemerror correctiontwo-step filter |
| spellingShingle | Zengke Li Ren Wang Jingxiang Gao Jian Wang An Approach to Improve the Positioning Performance of GPS/INS/UWB Integrated System with Two-Step Filter Remote Sensing ultra-wideband GPS/INS/UWB integrated system error correction two-step filter |
| title | An Approach to Improve the Positioning Performance of GPS/INS/UWB Integrated System with Two-Step Filter |
| title_full | An Approach to Improve the Positioning Performance of GPS/INS/UWB Integrated System with Two-Step Filter |
| title_fullStr | An Approach to Improve the Positioning Performance of GPS/INS/UWB Integrated System with Two-Step Filter |
| title_full_unstemmed | An Approach to Improve the Positioning Performance of GPS/INS/UWB Integrated System with Two-Step Filter |
| title_short | An Approach to Improve the Positioning Performance of GPS/INS/UWB Integrated System with Two-Step Filter |
| title_sort | approach to improve the positioning performance of gps ins uwb integrated system with two step filter |
| topic | ultra-wideband GPS/INS/UWB integrated system error correction two-step filter |
| url | https://www.mdpi.com/2072-4292/10/1/19 |
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