航空重力梯度测量系统及数据预处理方法

Airborne gravity gradient survey system and the data pre-processing

简要回顾了重力勘探及重力梯度测量的发展历史,介绍了重力梯度的基本概念和特点,接着阐述了航空重力梯度测量的基本原理和航空重力梯度仪的发展情况,讨论了傅里叶变换的在全张量测量系统(FTG,Full Tensor Gravity)数据预处理方法的应用,即利用傅里叶变换计算出重力梯度张量各分量和相应的重力位,同时可以实现坐标系间的变换。

The development history of gravity and gravity gradient survey were reviewed firstly ,and the concept and characters of gravity gradient were introduced in this paper .Then ,the theory of airborne gravity gradient and its development were elaborated .Based on that ,the application of standard Fourier-transform was applied in the data-processing .According to the application ,the components of gravity gradient tensor and its gravity potential could be obtained ,and coordinates transformation was implemented also .