Next Generation Data Collection System for Mobile Detection and Discrimination of Unexploded Ordnance.

摘要

A feasibility analysis for one-pass detection and discrimination of unexploded ordnance was conducted. Position and orientation accuracies were optimized through Kalman filtering of Global Positioning System and tactical grade Inertial Motion Unit data output from a Novatel SPAN. In controlled tests on a rotating amusement park carousel and when mounted on a towed array, the SPAN demonstrated positional and orientation accuracies of better than 2 cm and 0.6 degrees respectively. Survey design analysis and monte-carlo simulations were used to predict the expected performance of next-generation cart and towed- array systems. A modification of the TEMTADS cued interrogation array, comprising four 1 m by 1 m transmitters that fire-sequentially, display excellent discrimination potential. The four-transmitter TEMTADS with 5 cm position error and 2 degree orientation error outperformed a EM63 equivalent sensor with 1 cm and 1 degree error. We conclude that one-pass detection and discrimination will be feasible at many UXO contaminated sites.