A Pseudo-Time Constant Approach to Target Discrimination in Airborne Time-Domain Electromagnetic Uxo Surveys

A simple combination of data from three time-domain electromagnetic time gates is used to drastically reduce the total number of picks required to detect a set number of known seed items. This approach takes advantage of the physics of time-domain electromagnetic geophysical systems and signal decay properties in a way that does not require as much data as that needed to calculate the actual delay constant.