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 ...

Helm space is the most valuable real estate on board, and to get the most navigation gear for the space, choosing from these multifunction displays with integrated sonar is key. These touchscreen ...

Along with some whales, dolphins, porpoises and birds, bats use a special navigation system called echolocation. This special skill set is a natural form of sonar, in which they rely on their hearing ...