摘要
本文详细推导了,在顾及高级点误差的影响时,高级点与低级点参数协方差矩阵的计算公式。由该矩阵可以计算出低级网点的误差椭圆及高级点与低级网点间的相对误差椭圆。文中给出了一个实例来说明它的应用。
This paper derives in detail a covariance matrix of higher-order points and lower-order points when considering the effects of the higher-order net's error, by which the error ellipse of the lower-order points and the relative error ellipse between the higher-order points and the lower-order points can be computed. A practical example is given to illustrate its application.
出处
《测绘科学》
CSCD
1993年第2期17-21,共5页
Science of Surveying and Mapping
关键词
高级点
低级点
误差椭圆
相对误差椭圆
higher-order points
lower-order points
error ellipse
relative error ellipse