摘要
针对在实际测量工作中量测圆心坐标及半径时存在的问题,该文基于迭代法的思想,推导了一种圆曲线拟合的方法,并用实例数据进行了检验。结果显示,该方法在离散点均匀采集或非均匀采集的情况下均具有良好的拟合效果,与目前在圆曲线拟合方法中普遍采用的最小二乘法相比,具有同样高的拟合精度,验证了该拟合方法的正确性与可行性。
Aiming at the problem of surveying circular center coordinates and radius in practical surveying and mapping,the paper deduced a circular curve fitting method based on iterative theory.Experimental result showed that the method would have good fitting effects both in the cases of discrete points uniform and non-uniform collection,and have the same high-precise fitting with the least square algorithm widely used at present,which could prove the feasibility of the proposed method.
出处
《测绘科学》
CSCD
北大核心
2016年第5期133-136,共4页
Science of Surveying and Mapping
关键词
圆曲线
拟合
迭代法
圆心坐标
circular curve
fitting
iterative method
coordinate of the circle center
