Wideband, Multi-axis Magnetic/Electromagnetic Gradiometer with Advanced Signal Processing for UXO and Landmine Discrimination

Presently deployed metal detectors can detect low-metal content mines, but cannot discriminate mines from metallic clutter. Their operation remains plagued by unacceptably high false alarm rates; 70% of remediation costs go to the excavation of shrapnel,spent bullet casings, and other clutter. Quantum Magnetics proposes a revolutionary enhancement to conventional metal detectors. Using a multi-component magnetic gradiometer as the receiver enables not only detection, but also localization, of an object.Wideband, multi-frequency excitation and advanced signal processing (collaborating with Duke University) can characterize metallic targets, discriminating mines and UXO from clutter. The system is a single tool to detect, locate and characterize bothlandmines and UXO. It lends itself to integration with other sensor technologies, such as ground-penetrating radar, soil conductivity anomaly sensors, and Nuclear Quadrupole Resonance (NQR). QM is the world leader in NQR for detection of bulk explosivecharges in landmines. In Phase I, we will collect passive (magnetic) and active (electromagnetic) signatures of various types of simulant mines (SIMs) and clutter; we will then use these signatures to demonstrate the enhanced discrimination afforded bywideband excitation and signal processing. In Phase II, we will develop a prototype using gradiometer technology leveraged from other efforts.