Featured Research

from universities, journals, and other organizations

Small Bit Of A CMOS Chip Holds 2-D Through-the-walls Radar Imager

Date:
February 5, 2008
Source:
University of Southern California
Summary:
Two researchers have created a send/receive chip that functions as an active array, sending out a matrix of 49 simultaneous ultrawideband radar probe beams and picking up the returned beam reflections. It is fabricated by economical CMOS technology. Applications for 49-pixel probe-and-camera system range from medical imaging to emergency rescue.

Two researchers from the USC Viterbi School of Engineering have created a send/receive chip that functions as an active array, sending out a matrix of 49 simultaneous ultrawideband radar probe beams and picking up the returned beam reflections.

Related Articles


Professor Hossein Hashemi of the Viterbi School's Ming Hsieh Department of Electrical Engineering and graduate student Ta-Shun Chu designed and fabricated the device that will be presented February 4 at the 2008 IEEE International Solid State Circuits Symposium in San Francisco.

According to Hashemi, "the chip benefits from a novel architecture that allows for the integration of an entire 2D array in a small area of a standard chip," processed by the familiar and economical CMOS process.

Creating the device on CMOS, (Complementary metal–oxide–semiconductor) says Hashemi, "reduces the cost by orders of magnitude, while increasing the functionality. In effect, the chip is a 49-pixel camera operating in the radio band.

"The chip can be used in various radar and imaging system to detect, identify and locate multiple objects simultaneously in a complex environment," Hashemi says. "Potential applications include through-the-wall imaging, and search and rescue missions" (such as finding earthquake victims buried in rubble, and distinguishing survivors from the dead).

Other possible uses include biomedical imaging, security monitoring devices and real-time collision avoidance systems for vehicles, both safety devices for cars with drivers and application in autonomous vehicles.

Last year the two researchers presented a CMOS chip that worked on the same principles but produced only a single beam, offering only single-point one-dimensional detection. The new version's 7x7 array of beams, scanning in "offers many more degrees of freedom for communication and imaging in complex environments," Hashemi said.


Story Source:

The above story is based on materials provided by University of Southern California. Note: Materials may be edited for content and length.


Cite This Page:

University of Southern California. "Small Bit Of A CMOS Chip Holds 2-D Through-the-walls Radar Imager." ScienceDaily. ScienceDaily, 5 February 2008. <www.sciencedaily.com/releases/2008/02/080204212816.htm>.
University of Southern California. (2008, February 5). Small Bit Of A CMOS Chip Holds 2-D Through-the-walls Radar Imager. ScienceDaily. Retrieved February 28, 2015 from www.sciencedaily.com/releases/2008/02/080204212816.htm
University of Southern California. "Small Bit Of A CMOS Chip Holds 2-D Through-the-walls Radar Imager." ScienceDaily. www.sciencedaily.com/releases/2008/02/080204212816.htm (accessed February 28, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Saturday, February 28, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Elon Musk's Hyperloop Moves Forward

Elon Musk's Hyperloop Moves Forward

Buzz60 (Feb. 27, 2015) Zipping around at 800-miles an hour is coming closer to reality in California. An entire town is being built around Elon Musk&apos;s Hyperloop concept and it wants you to stop in for a ride when it&apos;s ready. Brett Larson is on board. Video provided by Buzz60
Powered by NewsLook.com
Vibrating Bicycle Senses Traffic

Vibrating Bicycle Senses Traffic

Reuters - Innovations Video Online (Feb. 26, 2015) Dutch scientists have developed a smart bicycle that uses sensors, wireless technology and video to warn riders of traffic dangers. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
In Japan, Robot Dogs Are for Life -- And Death

In Japan, Robot Dogs Are for Life -- And Death

AFP (Feb. 25, 2015) Robot dogs are the perfect pet for some in Japan who go to repairmen-turned-vets when their pooch breaks down - while a full Buddhist funeral ceremony awaits those who don&apos;t make it. Duration: 02:40 Video provided by AFP
Powered by NewsLook.com
London Show Dissects History of Forensic Science

London Show Dissects History of Forensic Science

AFP (Feb. 25, 2015) Forensic science, which has fascinated generations with its unravelling of gruesome crime mysteries, is being put under the microscope in an exhibition of real criminal investigations in London. Duration: 00:53 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins