POINTER: Seeing through walls to help locate firefighters
A unique positioning technology is being developed to pinpoint firefighters inside buildings where other positioning technologies fail.
Apr 7, 2021
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40
Electronics & Semiconductors
News tagged with radio waves
Robotics
A robot that senses hidden objects
In recent years, robots have gained artificial vision, touch, and even smell. "Researchers have been giving robots human-like perception," says MIT Associate Professor Fadel Adib. In a new paper, Adib's team is pushing the ...
Apr 1, 2021
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245
Engineering
Researchers harvest energy from radio waves to power wearable devices
From microwave ovens to Wi-Fi connections, the radio waves that permeate the environment are not just signals of energy consumed but are also sources of energy themselves. An international team of researchers, led by Huanyu ...
Mar 25, 2021
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1105
Electronics & Semiconductors
Using digitally programmable metasurfaces to conduct space and frequency division multiplexing
A combined team of researchers from Southeast University and the Jiangsu Cyber Space Science & Technology Co., both in China, has developed a way to use digitally programmable metasurfaces to conduct space and frequency division ...
Robotics
An army of sewer robots could keep our pipes clean, but they'll need to learn to communicate
Hidden from sight, under the UK's roads, buildings and parks, lies about one million kilometers of pipes. Maintaining and repairing these pipes require about 1.5 million road excavations a year, which causes either full or ...
Jan 26, 2021
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Telecom
How does Wi-Fi work? An electrical engineer explains
Though you can't see them, radio waves are all around you all the time, carrying information. For most people, some of those radio waves are Wi-Fi signals. Wi-Fi is the catchy name an industry alliance came up with to market ...
Jan 12, 2021
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6
Automotive
Upgraded radar can enable self-driving cars to see clearly no matter the weather
A new kind of radar could make it possible for self-driving cars to navigate safely in bad weather. Electrical engineers at the University of California San Diego developed a clever way to improve the imaging capability of ...
Nov 18, 2020
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69
Engineering
An underwater navigation system powered by sound
GPS isn't waterproof. The navigation system depends on radio waves, which break down rapidly in liquids, including seawater. To track undersea objects like drones or whales, researchers rely on acoustic signaling. But devices ...
Nov 2, 2020
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643
Telecom
5G networks: are there health risks?
Do 5G mobile telephones and networks pose health risks? Worries about the effect the technology has on humans and the environment have persisted as it has been deployed in various countries. What do scientists have to say ...
Sep 29, 2020
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8
Telecom
Optical Wi-Fi allows for ultrafast underwater communications
EPFL spin-off Hydromea has developed a miniature optical modem that can operate down to 6,000 meters below the ocean's surface. It is sensitive enough to collect data at very high speeds from sources more than 50 meters away.
Sep 22, 2020
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