| GPS 高程转换的总体最小二乘组合方法 |
| |
| 引用本文： | 王乐洋,吴飞,吴良才.GPS 高程转换的总体最小二乘组合方法[J].测绘工程,2016,25(4):11-14. |
| |
| 作者姓名： | 王乐洋 吴飞 吴良才 |
| |
| 作者单位： | 东华理工大学 测绘工程学院，江西 南昌 330013;流域生态与地理环境监测国家测绘地理信息局重点实验室，江西 南昌 330013;江西省数字国土重点实验室，江西 南昌 330013;东华理工大学 测绘工程学院,江西 南昌,330013 |
| |
| 基金项目： | 国家自然科学基金资助项目(41204003,41161069,41304020);测绘地理信息公益性行业科研专项(201512026);江西省自然科学基金资助项目(20132BAB216004);江西省教育厅科技项目(GJJ13456,KJLD12077,KJLD14049);地理空间信息工程国家测绘地理信息局重点实验室项目(201308);东华理工大学博士科研启动金(DHBK201113) |
| |
| 摘 要： | 在现有GPS高程转换的研究中,通常只采用单一的解算方法,然而,不同的计算方法由于适用的条件不同,在对同一组数据进行解算时,解算的精度也各有优劣。针对以上问题,文中提出GPS高程转换的总体最小二乘组合方法,对多种不同的高程转换方法进行组合,运用总体最小二乘法计算不同方法的权值,结合实际工程数据,验证该方法的可行性。计算结果表明,提出的方法能够有效地提高高程转换精度。
|
| 关 键 词： | 总体最小二乘 组合方法 G PS高程 高程转换 多项式拟合 |
Total least squares combination method of GPS height transformation |
| |
| WANG Leyang,WU Fei,WU Liangcai.Total least squares combination method of GPS height transformation[J].Engineering of Surveying and Mapping,2016,25(4):11-14. |
| |
| Authors: | WANG Leyang WU Fei WU Liangcai |
| |
| Institution: | WANG Leyang;WU Fei;WU Liangcai;School of Geomatics,East China Institute of Technology;Key Laboratory of Watershed Ecology and Geographical Environment Monitoring,NASG;Jiangxi Province Key Lab for Digital Land; |
| |
| Abstract: | In the current research on GPS height transformation ,single calculation methods are used only . However ,due to different calculation methods applicable for different conditions ,though for the solution of the same set of data ,the precision of each will also have advantages and disadvantages .In view of the above problems ,this paper puts forward the total least squares combination method of GPS height transformation;it makes the combination of a variety of different height transformation methods and calculates the weight of different schemes .Calculations are performed by using the actual engineering data to verify the feasibility and effectiveness of the method .T he test results show that the method can effectively improve the accuracy of height transformation . |
| |
| Keywords: | total least squares combination method GPS height elevation transformation polynomial fitting |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
