Percorrer por autor "Pereira, Tiago Filipe Amado Ribeirete"
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- Near surface object detection radar for UAVPublication . Pereira, Tiago Filipe Amado Ribeirete; Casaleiro, João Carlos Ferreira de Almeida; Costa, Vítor Manuel da SilvaAbstract The reliable detection of underground objects, such as landmines, remains a critical challenge in post-conflict areas where irregular soils complicate accurate target identification for demining, increasing risks to operators. This work addresses this issue by developing a ground-penetrating radar (GPR) system to be carried out by an unmanned aerial vehicle (UAV), using a Stepped Frequency Continuous Wave (SFCW) radar technique from 1 GHz to 6 GHz to transmit and to receive the signals, as well as self-interference cancelling techniques to cancel or mitigate self-interference and ground reflection signals. The GPR system was still able to function as a radar with the BladeRF 2.0 micro xA9, clearly detecting metal targets 1 meter away and distinguishing it from the floor and sand, although each data acquisition takes at least 10 seconds in order to have optimized values. The software cancellation was possible, but not through hardware.