| 中国区域GPS单频点定位在不同类型磁暴主相期间定位性能分析 |
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| 引用本文： | 全林, 薛军琛, 胡小工, 李泠, 刘钝, 王东亚. 2021. 中国区域GPS单频点定位在不同类型磁暴主相期间定位性能分析. 地球物理学报, 64(9): 3030-3047, doi: 10.6038/cjg2021P0331 |
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| 作者姓名： | 全林 薛军琛 胡小工 李泠 刘钝 王东亚 |
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| 作者单位： | 1. 北京跟踪与通信技术研究所, 北京 100094; 2. 中国科学院上海天文台, 上海 200030; 3. 中国电科22所, 青岛 266107 |
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| 基金项目： | 国家自然科学基金;教育部国家留学基金 |
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| 摘 要： | 地磁暴期间,电离层可出现不同程度的扰动,显著影响GNSS导航系统性能.本文针对GNSS系统应用需求,全面分析了不同等级磁暴主相期间GPS单频点定位精度在中国区域(地磁中、低纬地区)的受扰情况.结果表明,定位误差极端值的出现概率与磁暴等级呈正相关,也与测站纬度相关(低纬一般高于高纬),定位精度在U(垂直)方向受影响程度明...
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| 关 键 词： | GPS 单频点定位 磁暴 主相 |
| 收稿时间： | 2021-05-13 |
| 修稿时间： | 2021-05-31 |
Performance of GPS single frequency standard point positioning in China during the main phase of different classified geomagnetic storms |
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| QUAN Lin, XUE JunChen, HU XiaoGong, LI Ling, LIU Dun, WANG DongYa. 2021. Performance of GPS single frequency standard point positioning in China during the main phase of different classified geomagnetic storms. Chinese Journal of Geophysics (in Chinese), 64(9): 3030-3047, doi: 10.6038/cjg2021P0331 |
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| Authors: | QUAN Lin XUE JunChen HU XiaoGong LI Ling LIU Dun WANG DongYa |
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| Affiliation: | 1. Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094, China; 2. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China; 3. No. 22 nd Research Institute, China Electronics Technology Group Corporation, Qingdao 266107, China |
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| Abstract: | Geomagnetic storms can induce different levels of ionospheric disturbance, which can make prominent impacts on the performance of GNSS applications. In this study, the influence on the accuracy of GPS single frequency standard point positioning (SPP) in China (geomagnetic low and middle latitudes) during the main phase of different classified geomagnetic storms was comprehensively investigated with requirements of GNSS system application. The results demonstrated that the probability of the extrema in positioning errors was positively correlated with the level of geomagnetic storms. That is correlative with the latitude of stations (lower latitudes is generally higher than for higher latitudes) as well. The influence on the positioning errors in U (vertical) directions was evidently stronger than in other directions. In addition, the positioning errors could be influenced noticeably during the recovery phase of geomagnetic storms. The finding in this study could provide a reference to the performance of GNSS applications, the performance of applications and related improvements of Beidou global navigation satellite system (BDS-3) and the study of ionospheric disturbance attributes in China (geomagnetic low and middle latitudes) region during geomagnetic storms. |
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| Keywords: | GPS Single frequency standard point positioning Geomagnetic storms Main phase |
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