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| 高精度重力数据格网化方法比较 | |
| 引用本文： | 孙文,吴晓平,王庆宾,李新星,朱志大. 高精度重力数据格网化方法比较[J]. 大地测量与地球动力学, 2015, 35(2): 342-345 |
| 作者姓名： | 孙文 吴晓平 王庆宾 李新星 朱志大 |
| 作者单位： | 1〓解放军61243部队，乌鲁木齐市仓房沟东路473号，8600032〓信息工程大学地理空间信息学院，郑州市科学大道62号，4500013〓解放军61206部队，北京市，100000 |
| 摘 要： | 研究3种常用格网化方法，给出Kriging方法滞后距与变异函数的计算方法，并利用实测重力异常数据对3种方法在不同模型参数下的插值精度作比较。结果表明，3种方法的均方根差别不大，区别在于局部区域的变化。相对而言，在该区域内Kriging方法精度最高，CoKriging次之，Shepard略低。 |
| 关 键 词： | 重力异常 格网化 Shepard Kriging CoKriging |
| 收稿时间： | 2014-03-04 |
Comparison and Analysis of High-Precision Gravity Data Gridding Methods |
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| SUN Wen,WU Xiaoping,WANG Qingbin,LI Xinxing,ZHU Zhida. Comparison and Analysis of High-Precision Gravity Data Gridding Methods[J]. Journal of Geodesy and Geodynamics, 2015, 35(2): 342-345 | |
| Authors: | SUN Wen WU Xiaoping WANG Qingbin LI Xinxing ZHU Zhida |
| Affiliation: | 1〓The PLA 61243 Troops,473 East-Cangfanggou Road,Urumqi 860003,China;2〓Institute of Geospatial Information, Information Engineering University, 62 Kexue Road, Zhengzhou 450001, China;3〓The PLA 61206 Troops, Beijing 100000,China |
| Abstract: | Three gravity anomaly gridding methods are introduced and analyzed in this paper. The computation of the lag distance and the semi-variogram are studied in detail. Three methods are compared with different parameters using real gravity anomaly data gridding computation. Results show that there is no great difference in precision. Comparatively, the Kriging method shows the best precision in this area. |
| Keywords: | gravity anomaly gridding Shepard Kriging CoKriging |
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