摘要
以悬链线方程式的数学模型为基础,最小二乘为原则,在工程测量三维平面坐标系下,建立误差方程式,采用改进的迭代间接平差拟合法对悬链线方程式求解,完成对电力架空光(电)缆的数值拟合。以该算法为基础,采用C++语言,开发出可应用于实际工程的数值拟合软件,并对计算结果进行了分析,实现了工程测量中对电力架空光(电)缆的数值拟合的快速计算。
On the basis of mathematical model of the catenary equation, the error formulae are established in the three-dimen- sional plane coordinate system of engineering survey with the principle of and least squares. The numerical fitting of over- head power light （electric）cable is completed through solving the catenary equation by using the improved iterative indirect adjustment fitting method. A numerical fitting software which can be applied to practical engineering is developed based on this algorithm and C＋＋ language. Some analysis are made for the results, and a fast calculation of numerical fitting for power overhead light （electric）cable in engineering survey is real- ized.
出处
《测绘地理信息》
2013年第3期61-63,共3页
Journal of Geomatics
关键词
悬链线
电力架空线
数值拟合
间接平差
最小二乘
catenary
overhead power lines
numerical fitting
indirect adjustment
least squares
