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| 引用本文： | 高新兵,李姗姗,李海,张宏伟,王应建.?????????????С????????????????????????е????[J].大地测量与地球动力学,2013,33(1):145-149. |
| 作者姓名： | 高新兵 李姗姗 李海 张宏伟 王应建 |
| 作者单位： | 1. 解放军信息工程大学测绘学院,郑州450052;解放军61365部队,天津300140 2. 解放军信息工程大学测绘学院,郑州,450052 3. 解放军61365部队,天津,300140 |
| 基金项目： | 国家自然科学基金(41274029);解放军信息工程大学测绘学院硕士学位论文创新与创优基金(S20120) |
| 摘 要： | ????????С????????????????????ж???????????????????????????????????????????????????????????????????顣?????????????????С??????????????????????3.6??10????-5??ms????-2??????????????С???????????????????????????????????????????????????4.6??10????-5??ms????-2??????????????????????????????????????С?????????????????????????????п???????Ч????? |
| 关 键 词： | ????????? ??С???????? ????????С???????? ?????????????? ????? |
APPLICATION OF POINT MASS MODEL AND LEAST SQUARE COLLOCATION IN MULTI-SOURCE GRAVITY DATA FUSION |
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| Gao Xinbing,Li Shanshan,Li Hai,Zhang Hongwei,and Wang Yingjian.APPLICATION OF POINT MASS MODEL AND LEAST SQUARE COLLOCATION IN MULTI-SOURCE GRAVITY DATA FUSION[J].Journal of Geodesy and Geodynamics,2013,33(1):145-149. | |
| Authors: | Gao Xinbing Li Shanshan Li Hai Zhang Hongwei and Wang Yingjian |
| Institution: | 1)Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 4500522)61365 Troops of PLA,Tianjin 300140 |
| Abstract: | For the multi source gravity data, the fusion methods such as Least Square Collocation (LSC) and point mass assumption are studied and then tested within a certain region in Australia with both airborne and ground gravity measurement data. The results show that the accuracy of multi resolution LSC proposed is ±36×10-5m/s2, while that of the least square total collocation is ±8.4×10-5m/s2.The accuracy of four layers point mass model including airborne dada is ±4.6×10-5m/s2, while that of the three layers point mass model with ground data only is ±5.6×10-5m/s2. And the ill posed problem in LSC vanishes in the point mass model. |
| Keywords: | point mass model Least Square Collocation (LSC) multi resolution LSC multi source gravity data fusion ill condition |
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