“…The potential illumination signals, such as FM, DVB, GSM, GNSS or WIFI, could be used by PBR for UAV detection. Some experimental results of UAVs detection using DAB signal as illumination is reported in (Schüpbach, Patry, Maasdrop, Böniger, & Wellig, 2017) and using DVB signal in (Liu et al, 2017).…”