“…UWB radar realizes the detection, recognition, and imaging of specific targets by emitting and receiving electromagnetic waves [1][2][3]. Compared with common sensors like optical or infrared ones, UWB radar contains certain technical advantages in high resolution, high penetrability, and all-weather, all-time functional capability, receiving wide applications in both civil and martial spheres [4][5][6][7][8][9]. Thus, an essential branch of UWB radar research and applications appeared, considering its capabilities: noncontact monitoring of human vital signs.…”