摘要
GPS高程拟合技术随着全球定位系统技术的迅速发展而得到普遍的运用。通过选取待测区点已知高程异常值拟合出似大地水准面求其它点的高程异常值,该技术具备传统测量无法相比的优势。本文选取安徽省宿州市埇桥区X026公路改造为课题,将工程中所获取的实测数据分别运用三次样条拟合与多项式曲面拟合法进行高程拟合。通过计算两种模型的内符合精度、外符合精度值以及高程异常值,对比分析两模型拟合精度的大小,得出在X026公路改造中使用三次样条拟合法进行高程拟合精度更高的结论。
With the rapid development of the global positioning system（GPS） technology,GPS Height Fitting Technology is widely used. By selecting the known elevation outliers in the area to measure the fitting height anomaly value of the other points,the technology has the advantage which traditional measurement cannot compare to. This paper selects the X026 highway rebuilding project of Suzhou City in Anhui Province and acquires measured data respectively by cubic spline fitting and polynomial surface fitting to conduct the height fitting. By calculating the two kinds of model accuracy,precision value and high abnormal labor value,the fitting precision has been compared and analyzed,and the conclusion is that in X026 road reconstruction the cubic spline fitting will lead to the highest elevation fitting.
出处
《湖北第二师范学院学报》
2017年第2期63-65,78,共4页
Journal of Hubei University of Education
基金
宿州区域发展协同创新中心开放课题(2015SZXTZXKF03)
测绘工程专业综合改革试点(SZXY2015ZY02)
测绘工程与3S教学团队(SZXYJXTD201403)
卓越人才教育培养计划(SZXY2015ZJJH01)
测绘工程双能型教学团队(2014XJSN02)
地理科学专业带头人(2014XJZY05)
关键词
高程拟合
高程异常
拟合精度
对比分析
公路改造
elevation fitting
height anomaly
fitting precision
comparative analysis
highway reconstruction
