Detectability Assessment of Airborne Gravity and Optimal Survey Parameters Design

摘要

Airborne gravity exploration has advantages in large area survey for its fast coverage.But how to complete the survey work effectively and safely is a main question during the data acquisition stage.In this paper,we present the concept of detecting probability and make an assessment of it,which can be used to instruct the airborne exploration process and obtain the optimal survey parameters.We have defined the criteria of detecting meaningful anomalies through considering the measured data error as Gaussian noise.And the effect on detecting probability of sources parameters,including buried depth,horizontal size,thickness,and survey parameters is showed using synthetic model.The map of target detecting probability with respect to flight height,survey line spacing and station spacing can be a tool to choose the optimal survey parameters,which can guarantee the exploration work.