Small Area Inertial Navigation Tracking (SAINT) System for Location of Buried UXO, Ver 2.

摘要

This report documents a demonstration at Aberdeen Proving Grounds on September 12-13, 2006 of the second generation SAINT inertial navigation positioning technology integrated with an EM61-HH metal detector. The primary objective of this demonstration was to demonstrate a relative position accuracy of the EM61-HH sensor of less than 2 cm (one standard deviation) along each of the three axes of the local positioning reference frame. The primary motivation for SAINT is to reduce the cost of OE remediation, which, in large part, is driven by the excavation costs of non-hazardous targets. SAINT was demonstrated to produce relative positioning accuracy of less than 5 mm and inversion fit quality consistent with a <1 cm positional accuracy. This accuracy is expected to be sufficient to allow target characterization based upon the EM61-HH sensor data to accurate relative geolocation. During the demonstration, data were collected at a rate of 6 targets per hour for a single operator. In production use we anticipate a minimum rate of 12 targets per hour. This production rate is expected to result in an interrogation cost of $7 per target, thus potentially saving a substantial percentage of OE remediation costs.