Optical Flow for Drone Horizontal Velocity Estimation without GPS. - Djedjiga Belfadel; David Haessig (FUSION, 2024)

Range-Only EKF-Based Relative Navigation for UAV Swarms in GPS-Denied Zones. - Djedjiga Belfadel; David Haessig; Cherif Chibane (IEEE Access, 2024)