US researchers have developed palm-sized drones that use bat-inspired ultrasound and AI to navigate through fog, smoke, and other challenging conditions. The breakthrough by a team at Worcester ...

Small drones are increasingly used in environments where visibility is limited, such as collapsed buildings, smoke-filled ...

Arcani's HARK passive acoustic drone detection system isolates signals in complex battlefield conditions to detect, classify ...

A mysterious new DJI drone prototype has been spotted in testing, focusing on propulsion efficiency and palm safety ahead of ...

A drone navigates using ultrasonic sensors and echo evaluation. This is less energy-intensive than conventional methods.