Signal Processing Society [SP-01]

Microwave Theory & Techniques; Aerospace & Electronic Systems; Signal Processing, and Antennas & Propagation Societies

6:00 PM, Tuesday, 28 May

MIMO Radar: Demystifies

Dr. Eli Brookner, Raytheon Co., IEEE AESS Distinguished Lecturer

First Multiple Input and Multiple Output (MIMO) radar is explained in simple terms. Where it is practical to use in the near terms is covered. Contrary to claims made MIMO radar does not provide an order of magnitude better angle resolution and accuracy over conventional radars. At best its accuracy is only a factor of 1/√2 (29 percent) better and its resolution is the same for a full monostatic array.

Alternately, at best a monostatic MIMO array radar can offer the advantage of the same accuracy as a conventional array radar with a smaller aperture size, one that is 1/√2= 0.707 smaller, or equivalently 29 percent smaller. The advantage of a possibly smaller antenna would be important where the antenna size is a driving factor. This advantage of better angle accuracy or smaller antenna size for a monostatic array of N elements comes at the need for ≥N times as much pulse compression match filtering and beamforming as needed for a conventional array.

Bistatic MIMO (Brookner, Eli, Microwave A MIMO array system consisting of a full transmit array and thinned receive array (called here a full/thin array) provides the same angle accuracy, resolution and identifiability (ability to specify the number of targets present) as its conventional equivalent, not orders of magnitude better performance. MIMO radar is best for search not for track, unless doing track-while-scan. MIMO in the near term will be useful for coherent and incoherent combining of existing radars to achieve effectively of the order of 9 dB better power-aperture-gain (PAG). MIMO has already been practically used for wireless communication systems, to provide increased data rate for a given bandwidth. As the cost of signal processing gets lower, MIMO should find more applications for radar systems.

Journal, Jan., 2013)

BEE: The City College of the City of New York, ’53, MEE and DrSc: Columbia University ’55 and ’62.

Eli Brookner Photo Dr. Eli Brookner has been with Raytheon Company since 1962, where he is a Principal Engineering Fellow. There worked on ASDE-X airport radar, ASTOR Air Surveillance Radar, RADARSAT II, Affordable Ground Based Radar (AGBR), major Space Based Radar programs, NAVSPASUR S-Band upgrade, COBRA DANE, PAVE PAWS, Missile Site Radar (MSR), COBRA JUDY Replacement, THAAD, Brazilian SIVAM, SPY-3, Patriot, BMEWS, UEWR, Surveillance Radar Program (SRP), Pathfinder marine radar, Long Range Radar (upgrade for > 70 ATC ARSRs), COBRA DANE Upgrade, AMDR, Space Fence, 3DELRR. Prior to Raytheon he worked on radar at Columbia University Electronics Research Lab. [now RRI], Nicolet and Rome AF Lab.

Received IEEE 2006 Dennis J. Picard Medal for Radar Technology & Application “For Pioneering Contributions to Phased Array Radar System Designs, to Radar Signal Processing Designs, and to Continuing Education Programs for Radar Engineers”; IEEE ’03 Warren White Award; Journal of the Franklin Institute Premium Award for best paper award for 1966; IEEE Wheeler Prize for Best Applications Paper for 1998. Fellow of IEEE, AIAA, MSS. He is an IEEE AESS Distinguished Lecturer.

Published four books: Tracking and Kalman Filtering Made Easy, John Wiley and Sons, Inc., 1998; Practical Phased Array Antenna Systems (1991), Aspects of Modern Radar (1988), and Radar Technology (1977), Artech House. Gives courses on Radar, Phased Arrays and Tracking around the world (25 countries). Over 10,000 attended these courses. Banquet/keynote speaker twelve times. >230 papers, talks and correspondences, >100 invited. Six paper reprinted in Books of Reprints (one in two books). Contributed chapters to three books.

Meeting is being held at MIT Lincoln Laboratory is located at 244 Wood St., Lexington, MA 02420. The cafeteria is open to the public and visitor parking is available adjacent to the main entrance (in front of the parking structure). The Laboratory is also accessible via MBTA Bus route 76. When entering the Wood St. gate and the Main Cafeteria entrance, please tell the guard on duty that you are a visitor attending the IEEE meeting. Refreshments are served at 5:30PM.

(Thanks to the Boston Photonics Society for the following directions.)

From interstate I-95/Route 128: Take Exit 31B onto Routes 4/225 towards Bedford - Stay in right lane; Use Right Turning Lane (0.3 mile from exit) to access Hartwell Ave. at 1st Traffic Light.; Follow Hartwell Ave. to Wood St. (~1.3 miles); Turn Left on to Wood Street and Drive for 0.3 of a mile.; Turn Right into MIT Lincoln Lab, at the Wood Street Gate.

From Exit 30B: Take Exit 30B on to Route 2A - Stay in right lane; Turn Right on to Mass. Ave (~ 0.4 miles - opposite Minuteman Tech.).; Follow Mass. Ave for ~ 0.4 miles.; Turn Left on to Wood Street and Drive for 1.0 mile.

Turn Left into MIT Lincoln Lab, at the Wood Street Gate.

To get to the Cafeteria, proceed toward the Main Entrance of Lincoln Laboratory. Before entering the building, proceed down the stairs located to the left of the Main Entrance. Turn right at the bottom of the stairs and enter the building through the Cafeteria entrance. The Cafeteria is located directly ahead.

For additional information, please contact Chris Galbraith at chris.galbraith@ll.mit.edu