Simulations indicate that a three-sensor quantum magnetometer array on a drone, combined with Bayesian active sampling and Gaussian process regression, can recover magnetic signatures of steel-reinforced rubble from ~1 m altitude in the sub-pT to sub-nT range after roughly 100 samples.
Evaluation of steel rebar in con- crete using electromagnetic method
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From Rubble Simulation to Active Magnetic Mapping: Quantum Sensing for Disaster Response
Simulations indicate that a three-sensor quantum magnetometer array on a drone, combined with Bayesian active sampling and Gaussian process regression, can recover magnetic signatures of steel-reinforced rubble from ~1 m altitude in the sub-pT to sub-nT range after roughly 100 samples.