Operation of the Pedemis Sensor at the Aberdeen Proving Ground Standardized Test Site: Single and Multi-Target Inversions

The Pedemis sensor is a newly designed electromagnetic induction sensor that exhibits the unique characteristics of: 1) being able to physically decouple its transmitter and receiver modules and 2) offering the possibility of dynamically selecting various data acquisition modes (individual selection of transmitters and selection of data acquisition time for shallow/deep target interrogation). Such flexibility is expected to be instrumental in non-trivial terrains exhibiting either an abundant vegetation or being highly contaminated by large or dense clutter. Before validating the sensor in such challenging configurations, however, the Pedemis was taken to Aberdeen Proving Ground, MD, for its first test site validation. This letter presents the protocol adopted for data acquisition as well as inversion results on typical targets, including inversion of semi-synthetic data with up to five simultaneous targets.