Studying the Fixing Rate of GPS PPP Ambiguity Resolution Under Different Geomagnetic Storm Intensities
Abstract Global Positioning System (GPS) Precise Point Positioning (PPP) with correct fixing ambiguity resolution (AR) can reach cm‐mm level positioning accuracy. However, this accuracy can be degraded by the geomagnetic storm effects. To comprehensively investigate the ambiguity resolved percentage...
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| Format: | Article |
| Language: | English |
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Wiley
2023-10-01
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| Series: | Space Weather |
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| Online Access: | https://doi.org/10.1029/2023SW003542 |
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| author | Xiaomin Luo Zhuang Chen Shengfeng Gu Neng Yue Tao Yue |
| author_facet | Xiaomin Luo Zhuang Chen Shengfeng Gu Neng Yue Tao Yue |
| author_sort | Xiaomin Luo |
| collection | DOAJ |
| description | Abstract Global Positioning System (GPS) Precise Point Positioning (PPP) with correct fixing ambiguity resolution (AR) can reach cm‐mm level positioning accuracy. However, this accuracy can be degraded by the geomagnetic storm effects. To comprehensively investigate the ambiguity resolved percentage (ARP) of GPS kinematic PPP, referred to as PPP‐ARP, under different intensities of geomagnetic storms, based on the Natural Resources Canada's Canadian Spatial Reference System (CSRS) PPP, this study for the first time gives the correlation between the PPP‐ARP and storm intensity using 67 storms occurred in the past 5 years of 2018–2022. Experimental results indicate that the PPP‐ARP decreases gradually as the increase of geomagnetic storm intensity. Under quiet and low geomagnetic conditions (Dstmin > −50 nT), the PPP‐ARP of global GNSS stations can achieve more than 96%, while these during strong storms (Dstmin ≤ −100 nT) are generally lower than 90.0%, especially for the PPP‐ARP of some stations located at low latitudes which are lower than 40.0%. The mechanism of PPP‐ARP decrease under geomagnetic storms is mainly due to the cycle slips and even loss of lock of GNSS signals caused by the storms induced ionospheric disturbances and scintillations. In addition, different from many previous studies, we found that the CSRS‐PPP with AR can achieve good positioning accuracy (3D RMS <0.2 m) even under strong geomagnetic storms. |
| format | Article |
| id | doaj-art-d31b4575f61443d781a4bf2443e3f32e |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2023-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-d31b4575f61443d781a4bf2443e3f32e2025-01-14T16:31:16ZengWileySpace Weather1542-73902023-10-012110n/an/a10.1029/2023SW003542Studying the Fixing Rate of GPS PPP Ambiguity Resolution Under Different Geomagnetic Storm IntensitiesXiaomin Luo0Zhuang Chen1Shengfeng Gu2Neng Yue3Tao Yue4School of Geography and Information Engineering China University of Geosciences (Wuhan) Wuhan ChinaSchool of Geography and Information Engineering China University of Geosciences (Wuhan) Wuhan ChinaGNSS Research Center Wuhan University Wuhan ChinaNo.6 Engineering Co., Ltd, of First Highway Engineering Company of China Communication Construction Co., Ltd. Tianjin ChinaGuangxi Key Laboratory of Spatial Information and Geomatics Guilin University of Technology Guilin ChinaAbstract Global Positioning System (GPS) Precise Point Positioning (PPP) with correct fixing ambiguity resolution (AR) can reach cm‐mm level positioning accuracy. However, this accuracy can be degraded by the geomagnetic storm effects. To comprehensively investigate the ambiguity resolved percentage (ARP) of GPS kinematic PPP, referred to as PPP‐ARP, under different intensities of geomagnetic storms, based on the Natural Resources Canada's Canadian Spatial Reference System (CSRS) PPP, this study for the first time gives the correlation between the PPP‐ARP and storm intensity using 67 storms occurred in the past 5 years of 2018–2022. Experimental results indicate that the PPP‐ARP decreases gradually as the increase of geomagnetic storm intensity. Under quiet and low geomagnetic conditions (Dstmin > −50 nT), the PPP‐ARP of global GNSS stations can achieve more than 96%, while these during strong storms (Dstmin ≤ −100 nT) are generally lower than 90.0%, especially for the PPP‐ARP of some stations located at low latitudes which are lower than 40.0%. The mechanism of PPP‐ARP decrease under geomagnetic storms is mainly due to the cycle slips and even loss of lock of GNSS signals caused by the storms induced ionospheric disturbances and scintillations. In addition, different from many previous studies, we found that the CSRS‐PPP with AR can achieve good positioning accuracy (3D RMS <0.2 m) even under strong geomagnetic storms.https://doi.org/10.1029/2023SW003542geomagnetic stormGlobal Navigation Satellite Systems (GNSS)precise point positioning (PPP)ambiguity resolution (AR)ionospheric scintillationionospheric disturbances |
| spellingShingle | Xiaomin Luo Zhuang Chen Shengfeng Gu Neng Yue Tao Yue Studying the Fixing Rate of GPS PPP Ambiguity Resolution Under Different Geomagnetic Storm Intensities Space Weather geomagnetic storm Global Navigation Satellite Systems (GNSS) precise point positioning (PPP) ambiguity resolution (AR) ionospheric scintillation ionospheric disturbances |
| title | Studying the Fixing Rate of GPS PPP Ambiguity Resolution Under Different Geomagnetic Storm Intensities |
| title_full | Studying the Fixing Rate of GPS PPP Ambiguity Resolution Under Different Geomagnetic Storm Intensities |
| title_fullStr | Studying the Fixing Rate of GPS PPP Ambiguity Resolution Under Different Geomagnetic Storm Intensities |
| title_full_unstemmed | Studying the Fixing Rate of GPS PPP Ambiguity Resolution Under Different Geomagnetic Storm Intensities |
| title_short | Studying the Fixing Rate of GPS PPP Ambiguity Resolution Under Different Geomagnetic Storm Intensities |
| title_sort | studying the fixing rate of gps ppp ambiguity resolution under different geomagnetic storm intensities |
| topic | geomagnetic storm Global Navigation Satellite Systems (GNSS) precise point positioning (PPP) ambiguity resolution (AR) ionospheric scintillation ionospheric disturbances |
| url | https://doi.org/10.1029/2023SW003542 |
| work_keys_str_mv | AT xiaominluo studyingthefixingrateofgpspppambiguityresolutionunderdifferentgeomagneticstormintensities AT zhuangchen studyingthefixingrateofgpspppambiguityresolutionunderdifferentgeomagneticstormintensities AT shengfenggu studyingthefixingrateofgpspppambiguityresolutionunderdifferentgeomagneticstormintensities AT nengyue studyingthefixingrateofgpspppambiguityresolutionunderdifferentgeomagneticstormintensities AT taoyue studyingthefixingrateofgpspppambiguityresolutionunderdifferentgeomagneticstormintensities |