| 基于经验正交函数分解的GRACE时变地球重力场滤波处理 |
| |
| 引用本文： | 王陈燕,游为,范东明.基于经验正交函数分解的GRACE时变地球重力场滤波处理[J].大地测量与地球动力学,2019,39(4):366-370. |
| |
| 作者姓名： | 王陈燕 游为 范东明 |
| |
| 作者单位： | 西南交通大学地球科学与环境工程学院,成都市高新区西部园区,611756;西南交通大学地球科学与环境工程学院,成都市高新区西部园区,611756;西南交通大学地球科学与环境工程学院,成都市高新区西部园区,611756 |
| |
| 基金项目： | 国家自然科学基金;国家自然科学基金;国家自然科学基金 |
| |
| 摘 要： | 针对传统GRACE去相关滤波方法很难同时完美实现真实信号的保留与条带误差的削弱等问题,提出将经验正交函数滤波与去相关滤波相结合的改进策略。分别对真实GRACE数据和模拟数据进行滤波处理,结果表明,改进的滤波方法继承了经验正交函数滤波方法与去相关滤波方法的优点,能够在尽可能地削弱南北条带误差影响的同时,最大程度地保留真实地球物理信号。
|
| 关 键 词： | GRACE 滤波方法 经验正交函数 Kolmogorov-Smirnov检验 |
GRACE Time-Variable Gravity Field Filtering Based on Empirical Orthogonal Function Decomposition |
| |
| WANG Chenyan,YOU Wei,FAN Dongming.GRACE Time-Variable Gravity Field Filtering Based on Empirical Orthogonal Function Decomposition[J].Journal of Geodesy and Geodynamics,2019,39(4):366-370. |
| |
| Authors: | WANG Chenyan YOU Wei FAN Dongming |
| |
| Institution: | (Faculty of Geoscience and Environmental Engineering,Southwest Jiaotong University,Western High-Tec Zone,Chengdu 611756,China) |
| |
| Abstract: | In using the GRACE filtering process, the traditional de-correlation filtering method presents difficulties in perfectly preserving the real signal and weakening the stripe error at the same time. In order to solve this problem, the paper makes a certain improvement on the filtering method and combined EOF filtering method with de-correlation filtering method. Several experiments are used to filter real GRACE data and simulated data, respectively. The results show that the improved filtering method inherits the advantages of the EOF filtering method and the de-correlation filtering method. The method weakens the influence of the north-south stripe error as much as possible,while preserving the most realistic signal. |
| |
| Keywords: | GRACE filtering method empirical orthogonal function Kolmogorov-Smirnov test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《大地测量与地球动力学》浏览原始摘要信息 |
| 点击此处可从《大地测量与地球动力学》下载免费的PDF全文 |
