摘要
Etvs效应改正误差一直被认是影响海洋重力测量精度的主要误差,为了减小由定位误差引起的Etvs效应改正误差,本文提出采用合理的测量点间隔计算航向、航速以提高Etvs效应改正精度的方法。通过必要理论分析与实际计算,证实了采用合适航向、航速计算间隔将提高Etvs效应改正精度,从而提高海洋重力测量精度。
Th error of Etvs effect correction has always been thought of as the main error which ef-fects the precision of marine gravity survey.To decrease the error of Etvs correction which caused by positioning error,the method of calculating the course and ship speed with reasonable intervals of posi-tioning point to improve the precison of Etvs correction is put forward.By essential theoretical analy-sis and actual calculation,the improvement of the precison of Etvs correction and marine gravity sur -vey shich applies reasonable calculation intervals of the course and ship speed is proved.
出处
《测绘工程》
CSCD
2002年第4期39-42,共4页
Engineering of Surveying and Mapping
