位置:成果数据库 > 期刊 > 期刊详情页
Properties of the Total Least Squares Estimation
  • ISSN号:1674-9847
  • 期刊名称:Geodesy and geodynamics
  • 时间:2012.12.15
  • 页码:39-46
  • 分类:O212.1[理学—概率论与数理统计;理学—数学] TG81[金属学及工艺—公差测量技术]
  • 作者机构:[1]Faculty of Geomatics, East China Institute of Technology, Nanchang 330013, China, [2]jiangxi Province Key Lab for Digital Land, Fuzhou 344000, China
  • 相关基金:The research was supported by the National Natural Science Foundation of China ( 41204003 ), Scientific Research Foundation of ECIT (DHBK201113 ) and Scientific Research Foundation of Jiangxi Province Key Laboratory for Digital Land ( DLLJ201207 ).
  • 相关项目:多源地壳形变场数据的总体最小二乘联合反演研究
作者: 王乐洋|
中文摘要:

Through theoretical derivation, some properties of the total least squares estimation are found. The total least squares estimation is the linear transformation of the least squares estimation, and the total least squares estimation is unbiased. The condition number of the total least squares estimation is greater than the least squares estimation, so the total least squares estimation is easier to be affected by the data error than the least squares estimation. Then through the further derivation, the relationships of solutions, residuals and unit weight variance estimations between the total least squares and the least squares are given.

英文摘要:

Through theoretical derivation, some properties of the total least squares estimation are found. The total least squares estimation is the linear transformation of the least squares estimation, and the total least squares estimation is unbiased. The condition number of the total least squares estimation is greater than the least squares estimation, so the total least squares estimation is easier to be affected by the data error than the least squares estimation. Then through the further derivation, the relationships of solutions, residuals and unit weight variance estimations between the total least squares and the least squares are given.

同期刊论文项目
同项目期刊论文
期刊信息
  • 《大地测量与地球动力学:英文版》
  • 主管单位:中国地震局
  • 主办单位:中国地震局地震研究所
  • 主编:
  • 地址:武昌洪山侧路40号
  • 邮编:430071
  • 邮箱:jgg09@163.cim
  • 电话:027-87864009
  • 国际标准刊号:ISSN:1674-9847
  • 国内统一刊号:ISSN:42-1806/P
  • 邮发代号:38-523
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:7