f CLASSIFICATION OF MEC WITH THE ALLTEM AT CAMP STANLEY, TEXAS

The ALLTEM is a multi-axis electromagnetic induction system for unexploded ordnance (UXO) applications. It uses a continuous triangle-wave excitation and provides good late-time signal-to-noise ratio especially for ferrous targets. Multiaxis transmitter and receiver systems such as ALLTEM provide a richer data set from which to invert for target parameters required to distinguish between clutter and UXO. Inversions of field data acquired at the Army’s UXO Standardized Test sites at the Yuma Proving Ground (YPG) in Arizona and at the Aberdeen Proving Ground (APG) in Maryland have produced reasonable and generally repeatable results for many UXO items buried at different orientations and depths. In February-March and again in June 2011 ALLTEM data was acquired at three locations on the Camp Stanley Storage Activity (CSSA) base just north of San Antonio, Texas. Camp Stanley is used to store munitions as well as test, fire, and overhaul munitions components.