News tagged with sonar systems

For pollock surveys in Alaska, things are looking up

Shelikof Strait, in the Gulf of Alaska, is an important spawning area for walleye pollock, the target of the largest—and one of the most valuable—fisheries in the nation. This year, a team of NOAA Fisheries ...

dateMay 21, 2015 in Ecology
shares12 comments 0

Robotic sonar system inspired by bats

Rolf Mueller, an associate professor of mechanical engineering in the College of Engineering at Virginia Tech, has developed a prototype of a dynamic sonar system inspired by horseshoe bats.

dateMay 20, 2015 in Plants & Animals
shares67 comments 0

Ultrasound technology made to measure

The range of uses for ultrasound is gigantic; the applied technologies are just as diverse. Researchers are now covering a wide range of applications with a new modular system: From sonar systems to medical ...

dateJan 06, 2015 in Engineering
shares22 comments 0

Whales hear us more than we realize

Killer whales and other marine mammals likely hear sonar signals more than we've known. That's because commercially available sonar systems, which are designed to create signals beyond the range of hearing ...

dateMay 01, 2014 in Plants & Animals
shares0 comments 0

Multibeam sonar can map undersea gas seeps

A technology commonly used to map the bottom of the deep ocean can also detect gas seeps in the water column with remarkably high fidelity, according to scientists from the University of New Hampshire and ...

dateOct 06, 2011 in Earth Sciences
shares0 comments 0

Understanding methane's seabed escape

A shipboard expedition off Norway, to determine how methane escapes from beneath the Arctic seabed, has discovered widespread pockets of the gas and numerous channels that allow it to reach the seafloor.

dateSep 19, 2011 in Earth Sciences
shares0 comments 0

Toward cheap underwater sensor nets

UC San Diego computer scientists are one step closer to building low cost networks of underwater sensors for real time underwater environmental monitoring. At the IEEE Reconfigurable Architectures Workshop ...

dateMay 27, 2009 in Engineering
shares0 comments 0