Wednesday, November 28, 2012

Developing a phased array system? Connect with the community and share your work: 2013 IEEE Symposium on Phased Array Sys. & Tech

During recent decades, phased array systems have made major steps forward with the development of many major radar and communications systems. due to many recent advances, including MMIC, photonics, and digital beamforming, phased array systems and technology continue to progress rapidly. Current and future developments of ground-based, sea-based, airborne, and space-based phased array radar, communications, and other electronic systems will be discussed at this international symposium.

Phased Array 2013, the 5th IEEE international symposium presenting advanced in phased array systems and technologies, will be held at the Westin Hotel, Waltham, Massachusetts on Boston’s famous Route 128.

Poster Presentations

Student Paper Competition

Special Sessions

Monday, November 26, 2012

Through-Wall Imaging Radar, MIT Lincoln Laboratory Journal

"The ability to locate moving targets inside a building with a sensor situated at a standoff range outside the building would greatly improve situational awareness on the urban battlefield. A radar imaging system was developed to image through walls, providing a down-range versus cross-range image of all moving targets at a video frame rate. This system uses an S-band, frequency-modulated, continuous-wave radar with a spatial frequency range gate coupled to a time-division multiplexed, multiple-input, multiple-output antenna array to rapidly acquire, process, and display radar imagery at a frame rate of 10.8 Hz. Maximum expected range through a 20 cm thick, solid concrete wall is 20 m. Measurements show that this system can locate humans (moving or standing still) behind 10 and 20 cm thick, solid concrete walls and through “cinder-block” walls."

Check out the November issue of Transactions on Antennas and Propagation: A Through-Dielectric Ultrawideband (UWB) Switched-Antenna-Array Radar Imaging System


A through-dielectric switched-antenna-array radar imaging system is shown that produces near real-time imagery of targets on the opposite side of a lossy dielectric slab. This system operates at S-band, provides a frame rate of 0.5 Hz, and operates at a stand-off range of 6 m or greater. The antenna array synthesizes 44 effective phase centers in a linear array providing $lambda/2$ element-to-element spacing by time division multiplexing the radar's transmit and receive ports between 8 receive elements and 13 transmit elements, producing 2D (range vs. cross-range) imagery of what is behind a slab. Laboratory measurements agree with simulations, the air-slab interface is range gated out of the image, and target scenes consisting of cylinders and soda cans are imaged through the slab. A 2D model of a slab, a cylinder, and phase centers shows that blurring due to the slab and bistatic phase centers on the array is negligible when the radar sensor is located at stand-off ranges of 6 m or greater.

This paper appears in:
Antennas and Propagation, IEEE Transactions on
Date of Publication: Nov. 2012
Author(s): Charvat, G. L. 
Department of Electrical and Computer Engineering, Michigan State University, East Lansing, 
Kempel, L. C. ;  Rothwell, E. J. ;  Coleman, C. M. ;  Mokole, E. L.
Volume: 60 , Issue: 11 
Page(s): 5495 - 5500 
Product Type: Journals & Magazines

Download the article here:
IEEE Xplore - A Through-Dielectric Ultrawideband (UWB) Switched-Antenna-Array Radar Imaging System

Wednesday, November 21, 2012

Let's talk small radars, the Tin Can Radar Forum

Interested in hacking together your own radar sensor?

Want to learn more about small radars?

Having problems implementing your MIT coffee can radar?

Have you built a radar but your spouse does not care to see it?

Join the Tin Can Radar forum!
Tin Can Radar Forum

Monday, November 19, 2012

X-Band CW Doppler Radar Experiment

Demonstration of an X-band CW radar in Doppler mode.

A bet settled between friends, who is the fastest?

For more information and to process data from this demo:

Friday, November 2, 2012

This month in IEEE Spectrum Magazine: Coffee-Can Radar

"As I stand on the side of the road, a couple of joggers stop to ask about the two coffee cans sprouting coaxial cables. “I’m testing a home-brew radar,” I explain, adding as they jog off, “you’re showing up just fine.” It reminded me of an old “Star Trek” episodein which Mr. Spock is transported back in time and must construct a futuristic electronic gadget using only 1930s-era vacuum-tube technology. “What on earth is that?” asks his landlady. “I am endeavoring, ma’am, to construct a mnemonic memory circuit using stone knives and bearskins,” he answers."

Coffee-Can Radar