SELF-SURVEY OF DISTRIBUTED THINNED PHASED ARRAYS

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$50,262.00
Award Year:
1989
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
9836
Agency Tracking Number:
9836
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1100 E Hector St, Conshohocken, PA, 19428
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr E Hesham Attia
(215) 540-9360
Business Contact:
() -
Research Institute:
n/a
Abstract
WE PROPOSE TO CONDUCT A STUDY LEADING TO THE EXPERIMENTAL COMPARISON OF THE PERFORMANCE OF SELF-SURVEY TECHNIQUES WITH ADAPTIVE BEAMFORMING IN ORDER TO COHERE LARGE AND DISTRIBUTED PHASED ARRAYS. PHASE I WILL (1) ANALYTICALLY COMPARE THE TWO APPROACHES, (2) ASSESS EQUIPMENT REQUIREMENTS, (3) ANALYZE PHASE ERRORS, (4) EVALUATE PREDICTED PERFORMANCE, AND (5) DESIGN AN EXPERIMENT TO COMPARATIVELY DEMONSTRATE THE TWO APPROACHES TO COHERING THE ARRAY. THE PROPOSED EXPERIMENT (TO BE PERFORMED UNDER PHASE II OF THIS PROGRAM) WILL UTILIZE EQUIPMENT BEING BUILT BY INTERSPEC UNDER A CURRENT PHASE II SBIR CONTRACT TO RADC/EEA, HANSCOM. THE EXPERIMENT REQUIRES MINIMAL HARDWARE CHANGES. A NUMBER OF OFF-THE-SHELF LASER SURVEYING INSTRUMENTS (A MINIMUM OF ONE AND A MAXIMUM OF THREE) SHALL BE ADDED TO THE EXISTING 3-ELEMENT DISTRIBUTED ARRAY RADAR. THE EXPERIMENT SHALL QUANTIFY REQUIREMENTS FOR COHERING A LARGE OR DISTRIBUTED ARRAY RADAR USING (1) SELF-SURVEY ALONE, (2) ADAPTIVE-BEAMFORMING ALONE, AND (3) A HYBRID SELF-SURVEY/ADAPTIVE BEAMFORMING TECHNIQUE. THE NEW HYBRID TECHNIQUE, TO BE DEVELOPED UNDER THIS PHASE I EFFORT, USES A COARSE SELF-SURVEY SYSTEM TO ESTABLISH APPROXIMATE ELEMENT POSITONS AND IMPROVES THE ESTIMATES ADAPTIVELY USING CLUTTER RETURNS. THEN ADAPTIVE BEAMFORMING IS APPLIED. THE ROBUST BEAM PRODUCED BY ADAPTIVE BEAMFORMING CAN BE SCANNED OVER WIDE ANGULAR REGIONS A MINIMAL SELF-SURVEY SYSTEM.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government