UXO Navigation Technology

Abstract : This report documents the goals, objectives, materials, methods and analysis associated with the SERDP MM-1441 UXO Navigation Technology research and development project. Over the 3+ years of the project, three laser-based positioning systems were evaluated for performance, and technology was developed associated with expanding laser positioning capabilities for UXO applications. Technologies developed as part of this project will significantly impact the DoD by facilitating deployment of new and emerging UXO discrimination tools where precise sensor location and orientation data are required. This project investigated three similar laser-based positioning technologies providing realtime 3D positional accuracy at the millimeter level. Only one of the systems was integrated with an inertial measurement unit (IMU) and two systems were integrated with the EM61-HH for hand-held applications. This new technology was tested and results presented in this report. The new Trimble SPS930 with its low latency and jitter, and 10 Hertz sampling rate is the instrument that proved to be the most feasible instrument for hand-held and wooded survey deployments.