A separate base station magnetometer acquired data for magnetic diurnal drift corrections. It also calculates estimated mass and depth for the buried ferromagnetic objects. That P D rate ranks the highest among those geophysical demonstrators who participated in at least two search scenarios. That result is better than other combined-scenario demonstrators with similar detection rates. The goal is higher detection with few false alarms.
Smartmag units are high-quality commercially available instruments.
Indeed, the Geonics EM-61 are perhaps the most frequently used instruments by JPG demonstrators. We are of the opinion that although the quest for new and innovative instruments should continue, the sensors we utilized at JPG already typically have an instrument noise level well below that of the terrain noise . Second, regarding processing and interpretation, we did not rely solely on computer software to make our target selection. Further efforts in research and development need next be applied to the task of enhanced target characterization.