Analytical error analysis for satellite gravity field determination based on two-dimensional Fourier method
文献类型：期刊论文
| 作者 | Cai, Lin1,2; Zhou, Zebing1,3; Hsu, Houtse1,4; Gao, Fang1; Zhu, Zhu1; Luo, Jun1,3 |
| 刊名 | JOURNAL OF GEODESY
 |
| 出版日期 | 2013-05-01 |
| 卷号 | 87期号:5页码:417-426 |
| 关键词 | Error Analysis Analytical Expression Gravimetry Colored Noise Gravity Field Two-dimensional Fourier Method |
| ISSN号 | 0949-7714 |
| DOI | 10.1007/s00190-013-0615-6 |
| 文献子类 | Article |
| 英文摘要 | The time-wise and space-wise approaches are generally applied to data processing and error analysis for satellite gravimetry missions. But both the approaches, which are based on least-squares method, address the whole effect of measurement errors and estimate the resolution of gravity field models mainly from a numerical point of view. Moreover, requirement for higher accuracy and resolution gravity field models could make the computation more difficult, and serious numerical instabilities arise. A direct analytical expression between power spectral density of the satellite gravimetry measurements and spherical harmonic coefficients of the Earth's gravity model is derived based on two-dimensional Fourier description. This method provides a physical insight into the relation between mission parameters, instrument parameters and gravity field parameters. In contrast, the least-squares method is mainly based on a mathematical viewpoint. By taking advantage of the analytical expression, it is efficient and distinct for parameter estimation and error analysis of missions. It is easy to obtain from the analytical relationship that the low-frequency noise affects the gravity field recovery in all degrees for the instance of satellite gradiometer recovery mission, which agrees with the work before by the numerical error analysis methods. |
| WOS关键词 | SPHERICAL HARMONIC COEFFICIENTS ; GOCE SATELLITE ; LEAST-SQUARES ; SPACE-WISE ; COMPUTATION ; COLLOCATION ; RECOVERY |
| WOS研究方向 | Geochemistry & Geophysics ; Remote Sensing |
| 语种 | 英语 |
| WOS记录号 | WOS:000317693700002 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/86254]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhou, Zebing |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Inst Geophys, Wuhan 430074, Peoples R China 2.Huazhong Univ Sci & Technol, Dept Elect & Informat Engn, Wuhan 430074, Peoples R China 3.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China 4.Chinese Acad Sci, IGG, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Lin,Zhou, Zebing,Hsu, Houtse,et al. Analytical error analysis for satellite gravity field determination based on two-dimensional Fourier method[J]. JOURNAL OF GEODESY,2013,87(5):417-426. |
| APA | Cai, Lin,Zhou, Zebing,Hsu, Houtse,Gao, Fang,Zhu, Zhu,&Luo, Jun.(2013).Analytical error analysis for satellite gravity field determination based on two-dimensional Fourier method.JOURNAL OF GEODESY,87(5),417-426. |
| MLA | Cai, Lin,et al."Analytical error analysis for satellite gravity field determination based on two-dimensional Fourier method".JOURNAL OF GEODESY 87.5(2013):417-426. |
入库方式： OAI收割
来源：地质与地球物理研究所
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