This Sonar Display is comprised of a "waterfall," many sound waves arranged vertically. Scrolling upwards, these waves represent different sound patterns over time. Moving horizontally across the ...

Knock on wood, and you get a dull thunk. It’s the basic principle behind sonar – sound waves reflecting off different objects. Anglers use sonar technology, too, in the form of a fish finder ...

The innovative research carried out over six years, utilized a unique tracking system installed in Israel's Hula Valley. Using this GPS-like technology, the researchers could track the flight of tiny ...

Expensive spinning lidar units can be found atop and around Level 4 autonomous vehicles, such as those from Cruise and Waymo.

The device makes sound waves scatter around an object making it invisible to sonar detection. In order to achieve this, the researchers used a "smart" material with special properties. The ...

most often sound waves. While a well-known use of this is sonar, ultrasonic sensors can also be put to use to make a radar-like system. This ultrasonic radar project is from [mircemk] who uses a ...

To make the detection more sensitive, researchers built the phased-array sonar system. This consists of multiple units that can transmit sound waves and those of different frequencies. Superimposing ...

However, the sound waves used are within normal hearing range, and they are used to identify objects rather than internal structures. This technique is applied in sonar systems used to find ...

Sound waves travel at 1,500 m/s in water. The time between sending and receiving a sonar sound pulse that detects a submarine on the seabed is 0.12 s. Calculate how far below the ship the ...

Naval sonar systems work like acoustic floodlights, sending sound waves through ocean waters for tens or even hundreds of miles to disclose large objects in their path. But this activity entails ...

Novel systems include a portable operations center, unmanned surface vehicles for finding mines, and underwater drones for ...