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 ...

The amount of data the Defense Department collects has exploded with the number of increasingly sophisticated sensors on ships and submarines. And to tackle this, DOD will need to embrace cross-domain ...

At using sonar, humans are novices compared to bats. That's why Israeli scientists are fitting bats with sensors in an attempt to reveal their echolocation secrets. Related Topics: Bats, Echolocation, ...

Mathematicians developed a new cloaking method, and it's unlikely to lead to invisibility cloaks like those used by Harry Potter or Romulan spaceships in "Star Trek." Instead, the new method someday ...

Radar technology is mainly known for generating weather data and for the surveillance of aircraft. Less well known are its applications in the study of migratory birds, bats, and insects, which ...

Hawk moths may be jamming bat sonar signals by rubbing their genitals. The behavior, reported in Biology Letters on 3 July, creates an ultrasonic noise that could be used to scare off an attacking bat ...

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 ...

The proliferation of autonomous underwater vehicles is adding to the urgency of developing reliable techniques for robust, reliable links, both between these vehicles as well as to them from above the ...