Real-Time Small UAV Detection in Complex Airspace Using YOLOv11 with Residual Attention and High-Resolution Feature Enhancement. - Chuang Han; Md Redwan Ullah; Amrul Kayes; Khalid Hasan; Md. Abdur Rouf; Md Rakib Hasan; Shen Tao; Guo Gengli; Mohammad Masum Billah (J. Imaging, 2026)