摘要
为提高区域大地水准面计算精度,基于EGM2008地球重力场位系数模型分析Meissel-Stokes核函数、截断误差系数以及截断误差。选取实验区,采用移去-恢复法评价Meissel-Stokes核函数计算大地水准面的精度。结果表明:Meissel-Stokes核函数及其截断误差系数收敛速度快;截断误差小且稳定。在积分半径不易扩展的情况下,应用Meissel-Stokes核函数计算区域大地水准面,比标准Stokes计算大地水准面精度略高。
In order to improve the accurate of the regional determination, based on the potential coefficient of gravity field model EGM2008,the features, the truncation error coefficient and the truncation error of the Meissel-Stokes kernel function are analyzed. In the test region, the accuracy of the geoid determination is estimated using the Meissel-Stokes kernel function by the remove-restore technique. The results show that the eonvergences of the Meissel-Stokes kernel function and its truncation error coefficient are accelerated, and its truncation error is small and stable. If the integral radius is too small to reach the required range, the Meissel-Stokes kernel function used in the geoid determination is better than the standard Stokes.
出处
《测绘工程》
CSCD
2015年第9期5-10,共6页
Engineering of Surveying and Mapping
基金
国家自然科学基金资助项目(41174018
41304022)
地球空间环境与大地测量数据教育部重点实验室开放基金(11-01-03)
