摘要
以方形域地形改正方法为基础,利用MATLAB语言编制了方形域地形改正程序。程序主要由两个模块组成:一是先将地形图数字化然后进行插值来获取高程数据;二是根据方形域地形改正公式进行计算。程序通过人机对话的形式,可以一次性完成全区的地形改正工作,不但减轻了重力地形改正工作的劳动强度,而且提高了计算精度与效率。最后用兴城夹山地区1∶20万地形图上441个重力测点进行了验证。
Based on a square field terrain correction method based on the use of MATLAB language domain prepared square terrain correction procedure,the procedure consists of two main modules: first digital topographic map and then proceed to acquire elevation data interpolation;The second is based on square Domain to correct formula for calculating the terrain.Procedures adopted by the man-machine dialogue in the form of one-time can complete the work to correct the topography of the region will not only reduce the gravity of the terrain to correct the work of the labor intensity and improve the accuracy and efficiency.Finally,with 1∶20 Xingcheng Jiashan million topographic map of gravity on 441 points verified.
出处
《吉林大学学报（地球科学版）》
EI
CAS
CSCD
北大核心
2008年第S1期36-38,共3页
Journal of Jilin University：Earth Science Edition
关键词
重力测量
地形改正
程序
gravity measurements
topographic correction
procedures
