Wind-Blown Clutter Mitigation to Improve Ultra High Frequency (UHF) Moving Target Indicator (MTI) Performance

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$119,945.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
W909MY-04-C-0014
Award Id:
68185
Agency Tracking Number:
A032-2632
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
8130 Boone Blvd., Suite 500, Vienna, VA, 22182
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
960756138
Principal Investigator:
Jameson Bergin
Research Engineer
(703) 448-1116
jsb@isl-inc.com
Business Contact:
Paul Techau
Vice President
(703) 448-1116
pmt@isl-inc.com
Research Institution:
n/a
Abstract
For stationary ground moving target indication (GMTI) radars, targets are generally isolated from clutter under the assumption that the clutter background is non-moving and therefore exists only at zero Doppler while moving targets will appear at non-zero Doppler shifts. In reality the background clutter will often have a non-zero bandwidth due to the presence of wind-blown foliage such as trees and shrubs and thus occupy Doppler filters other than the zero-Doppler filter. This results in degradation of the detection performance for slow moving targets resulting in minimum detectable velocity (MDV) performance of a radar system that varies as wind conditions change. For example, when the wind is blowing the clutter will occupy additional Doppler filters resulting in the obscuration of some moving targets that would otherwise be detectable under calmer wind conditions. The main goal of the proposed research is to develop techniques to enhance system performance by estimating clutter Doppler spread directly from the radar data in "real-time" and apply that knowledge in detection and tracking filters to reduce false alarms while maintaining system sensitivity. It is anticipated that the algorithms developed under the proposed effort will improve system performance by applying real-time characterization of the clutter Doppler spread due to wind-blown clutter during a given coherent processing interval (CPI).

* information listed above is at the time of submission.

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