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.

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 September 19, 2014 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 September 19, 2014).

Share This



More Matter & Energy News

Friday, September 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Virtual Reality Headsets Unveiled at Tokyo Game Show

Virtual Reality Headsets Unveiled at Tokyo Game Show

AFP (Sep. 18, 2014) Several companies unveiled virtual reality headsets at the Tokyo Game Show, Asia's largest digital entertainment exhibition. Duration: 00:48 Video provided by AFP
Powered by NewsLook.com
Apple's iOS8 Includes New 'Killswitch' To Curb Theft

Apple's iOS8 Includes New 'Killswitch' To Curb Theft

Newsy (Sep. 18, 2014) Apple's new operating system, iOS 8, comes with Apple's killswitch feature already activated, unlike all the models before it. Video provided by Newsy
Powered by NewsLook.com
Stocks Hit All-Time High as Fed Holds Steady

Stocks Hit All-Time High as Fed Holds Steady

AP (Sep. 17, 2014) The Federal Reserve signaled Wednesday that it plans to keep a key interest rate at a record low because a broad range of U.S. economic measures remain subpar. Stocks hit an all-time high on the news. (Sept. 17) Video provided by AP
Powered by NewsLook.com
Space Race Pits Bezos Vs Musk

Space Race Pits Bezos Vs Musk

Reuters - Business Video Online (Sep. 16, 2014) Amazon CEO Jeff Bezos' startup will team up with Boeing and Lockheed to develop rocket engines as Elon Musk races to have his rockets certified. Fred Katayama reports. Video provided by Reuters
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:
from the past week

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