LD3DGS-SLAM: Long-Distance Monocular SLAM With 3-D Gaussian Splatting and GNSS-Aided Localization for UAVs. - Dongdong Li 008; Tao Yang 006; Yilin Wang; Haidong Qin; Shixiong Fan; Shuanghan Zhang; Yidan Zhang; Jing Li 010 (IEEE Internet Things J., 2026)