| 稳健估计在两种坐标转换中的应用 |
| |
| 引用本文： | 张小青,李世顺.稳健估计在两种坐标转换中的应用[J].北京测绘,2011(3):61-63. |
| |
| 作者姓名： | 张小青 李世顺 |
| |
| 作者单位： | 1. 北京建筑工程学院,测绘与城市空间信息学院,北京100044
2. 北京市测绘设计研究院,北京,100038 |
| |
| 摘 要： | 针对空间坐标转换中的转换参数易受到公共点坐标精度的影响,采用稳健估计中的选权迭代法,理论分析和实际验算结果表明,对含有少量粗差的观测值利用选权迭代法可以减弱粗差的影响.获得正常模式下的最优或接近最优的参数估值。
|
| 关 键 词： | 稳健估计 粗差 坐标转换 |
Application of Robust Estimation in Two Kinds of Coordinate Transformation |
| |
| ZHANG Xiao-qing LI Shi-shun.Application of Robust Estimation in Two Kinds of Coordinate Transformation[J].Beijing Surveying and Mapping,2011(3):61-63. |
| |
| Authors: | ZHANG Xiao-qing LI Shi-shun |
| |
| Institution: | ZHANG Xiao-qing1 LI Shi-shun2 (1.Beijing University of Civil Engineering and Architecture,School of Geomantic and Urban Spatial Information,Beijing 100044,China 2.BeijingInstitute of Surveying and Mapping,Beijing 100038,China) |
| |
| Abstract: | For the problem of transforming parameters in calculating coordinates could be easily affected by coordinate precisions of common points,selecting weight iteration of robust estimation is proposed.It is proved by the theoretical analyses and the practical calculating results that robust estimation can resist or weaken the influence of gross error and acquire the normal mode of the optimal or near optimal parameter estimation. |
| |
| Keywords: | robust estimation gross error coordinate transformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
