摘要
二维直角坐标变换模型在工程领域中应用非常广泛,该模型是一个非线性模型,对于多公共点的二维直角坐标变换需要进行模型的线性化,计算待求参数的近似值,再利用间接平差原理计算各待求参数最或然值。本文在非线性模型基础上推导出一个线性模型,利用该模型进行二维直角坐标变换,无需计算待求参数近似值,对于涉及到二维直角坐标变换的问题,可以简化其解算过程。
Right-angle coordinate system conversion in planar space, a nonlinear model, is popular in engineering. For the problem having many common control points the model need to be linear and the proximate value of parameters need to be earned and then the most probable parameter is got by the theory of least-squares adjustment. On the base of nonlinear model this article provided a linear model that could simplify the calculation process of the problem involving right-angle coordinate system conversion in planar space.
出处
《测绘科学》
CSCD
北大核心
2011年第6期56-57,共2页
Science of Surveying and Mapping
关键词
二维直角坐标变换
线性模型
测量平差
right-angle coordinate system conversion in planar space
linear model
least-squares adjustment
