摘要
在云南山区利用GPS/水准拟合法精化大区域似大地水准面,难以获得高精度的正常高结果;文中结合云南昌宁县控制测量项目,利用云南省已有似大地水准面插值模型,并结合高精度GPS/水准,探讨采用三角剖分双线性内插法获取满足四等高程精度的拟合模型,并验证了精化模型的稳定性与精度指标。
In the mountain area of Yunnan province, it is difficult to obtain the normal results with high accuracy by using GPS / leveling fitting to refine the quasi-geoid model. Combined the control survey project of Changning County in Yunnan and the high-precision GPS / leveling, the fitting model that could get the fourth-height accuracy was discussed by using the triangulation bilinear interpolation method with Yunnan quasi-geoid interpolation software, and the stability and accuracy indexes of the refined model were verified.
出处
《测绘科学技术学报》
CSCD
北大核心
2014年第6期584-586,592,共4页
Journal of Geomatics Science and Technology
