海洋重力测量中厄特弗斯改正的优化计算

Optimization Computation of the Etvs Correction in Marine Gravimetry

厄特弗斯效应改正值的精度是影响海洋重力测量精度的最主要因素。为了提高其改正精度,提出采用航迹线拟合、合理的航向角和航速计算以及厄特弗斯改正值滤波,并通过理论分析和实例计算证明了该方法的有效性。

The accuracy of the Etvs effect correction is the most important factor that affects the precision of marine gravity survey.To decrease the error of Etvs correction value,we put forward the track fitting,calculation of the course and ship speed with reasonable method and Etvs correction filtering in this paper.By theoretical analysis and actual calculation,we confirmed the validity of the method.