Possible Detection of Multirotor UAVs Based on Disturbances in Magnetic Field

The number of unmanned aerial vehicles (UAVs) incidents in the world is increasing, because it is not difficult to buy multirotor UAVs that are inexpensive and technologically well equipped. This is the reason why the development of detection systems gains importance. Radar systems and specific frequencies detectors have their limitations, so it is necessary to develop different sensing methods. The presented paper deals with the possible lowrange method to detect electric-powered multirotor UAVs based on the low frequency magnetic fields generated around them. The results of the realized experiments with magnetic field sensors show that the UAV creates measurable magnetic fields disturbances that could be used as an intrusion indicator.