Traditional sonar and radar use an echo-based approach, and have been amazingly successful in sensing and tracking vehicles and objects under water, through the air, or even in space. The principle is ...

Driver-assistance features such as adaptive cruise control, automated emergency braking, lane centering, and blind-spot monitoring—which are the building blocks of hands-free driving systems—require a ...

It is an old trope in submarine movies. A sonar operator strains to hear things in the ocean but dares not “ping” for fear of giving away the boat’s location. Radar has a similar problem. If you want ...

Ultrasound travels at the speed of sound which is 330 m/s in air. This is not fast enough to track fast moving aircraft or more distant objects. So, instead of using ultrasound, radio waves are used ...

A civilian contractor steadies a M18 Mod 2 Kingfish Unmanned Underwater Vehicle (UUV) as it is lifted with a crane onto the deck of an 11-meter rigid-hull inflatable boat. The Kingfish uses side scan ...

ZeroUSV's Oceanus12 USV autonomously launched and recovered a sonar array at NATO's REPMUS 2025 exercise. (ZeroUSV) UK maritime autonomous systems group ZeroUSV has claimed a world-first towed array ...