Blind source separation application to smart eddy currents sensor for metal tag recognition

We present in this paper a Blind Source Separation (BSS) application to the separation of metal objects located inside the ground. We first describe a smart sensor based on the eddy currents and its application to the identification of metal tags. This system is sensitive to the presence of metal objects near the metal tag which can alter the sensor response. We show how using the BSS techniques permit one to release from defect perturbations. We describe the sensor modifications allowing the BSS application. The last part of this paper concerns the results obtained from a metal tag perturbed by a can.