摘要
部分最小二乘平差是把观测值按照是否含有粗差分成两组 ,对不含粗差的那一组实施最小二乘平差。本文推导了在相关观测条件下的最小二乘原理 ,对这种平差方法的一些估计量的统计性质进行了简单分析 ,结果表明 ,这种方法能够用于粗差估算。本文还详细叙述了用这种方法进行粗差的定值定位的过程 ,即首先根据单位权中误差进行分组 ,然后实施部分最小二乘平差 ,估算粗差的大小。
The principle of the adjustment based on least squares sum of partly residuals was derived in this paper.Some statistic character of it's estimates were analyzed,the conclusion that this method can be used in detecting gross error was resulted.The processing of gross error location and evaluation was described in detail.A series of indexes indicate its feasibility.
出处
《测绘科学》
CAS
CSCD
北大核心
2005年第2期70-72,共3页
Science of Surveying and Mapping
关键词
相关观测
部分最小二乘
粗差
定位
定值
correlative observer
partly least squares
gross error
location
estimation
