Analysis of inversion errors of ionospheric radio occultation
文献类型：期刊论文
| 作者 | Wu, Xiaocheng1,2; Hu, Xiong1; Gong, Xiaoyan1,2; Zhang, Xunxie3; Wang, Xin1 |
| 刊名 | GPS SOLUTIONS
 |
| 出版日期 | 2009-07-01 |
| 卷号 | 13期号:3页码:231-239 |
| 关键词 | Ionospheric radio occultation Error source Simulation Asymmetry of electron density COSMIC |
| 通讯作者 | Wu, XC (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China. |
| 英文摘要 | The retrieved electron density profile of ionospheric radio occultation (RO) simulation data can be compared with the background model value during the simulation and the inversion error can be obtained exactly. This paper studies the inversion error of ionospheric RO through simulation. The sources of the inversion errors are analyzed. The impacts of measurement errors, such as the errors in phase measurements and satellite orbits, are very small and can be neglected. The approximation of straight-line propagation introduces errors at the height of the F1 layer under solar maximum condition. The spherical symmetry approximation of the electron density distribution is found to be the main source of the inversion error. The statistical results reveal some characteristics of the inversion errors. (1) The relative error increases with enhanced solar activity. (2) It is larger in winter than in equinox season, and it is smallest in summer. (3) For all seasons, it is smaller at middle latitude than at other latitudes. (4) For all seasons and geomagnetic latitudes, it is smaller at daytime than at other times. The NmF2 of the ROs from COSMIC are compared with the measurements of ionosondes, and the relative differences show the same dependencies on season, geomagnetic latitude and local time, as the relative errors of the simulated ionospheric ROs. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Remote Sensing |
| 研究领域[WOS] | Remote Sensing |
| 关键词[WOS] | ELECTRON-DENSITY PROFILES ; GLOBAL POSITIONING SYSTEM ; ATMOSPHERE ; CHAMP ; PERFORMANCE ; VENUS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000267662000008 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/2199]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Xiaocheng,Hu, Xiong,Gong, Xiaoyan,et al. Analysis of inversion errors of ionospheric radio occultation[J]. GPS SOLUTIONS,2009,13(3):231-239. |
| APA | Wu, Xiaocheng,Hu, Xiong,Gong, Xiaoyan,Zhang, Xunxie,&Wang, Xin.(2009).Analysis of inversion errors of ionospheric radio occultation.GPS SOLUTIONS,13(3),231-239. |
| MLA | Wu, Xiaocheng,et al."Analysis of inversion errors of ionospheric radio occultation".GPS SOLUTIONS 13.3(2009):231-239. |
入库方式： OAI收割
来源：武汉物理与数学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。