Exploitation of Geometric Diversity for High Resolution Ultrahigh Frequency (UHF) Synthetic Aperture Radar (SAR) Imaging

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,019.00
Award Year:
2010
Program:
SBIR
Phase:
Phase I
Contract:
FA8650-10-M-1830
Award Id:
97409
Agency Tracking Number:
F093-145-2350
Solicitation Year:
n/a
Solicitation Topic Code:
AF 09-145
Solicitation Number:
n/a
Small Business Information
445 Dead Indian Memorial Rd, Ashland, OR, 97520
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
932096969
Principal Investigator:
Arlen Schmidt
Senior Radar Engineer
(541) 552-5142
arlen.schmidt@skyresearch.com
Business Contact:
Jack Foley
VP Technology
(541) 552-5141
jack.foley@skyresearch.com
Research Institution:
n/a
Abstract
Sky Research, Inc. proposes to investigate the application of geometric diversity to Ultra-High Frequency Synthetic Aperture Radar (UHF SAR) and to analyze the effects on coverage, resolution, and detection performance. Geometric diversity can be realized with curved, circular, or spiral flight paths, or by combining multiple straight or curved flight paths into a single coherent data set. The project will include an in-depth analysis of the image characteristics associated with geometric diversity, as well as evaluation of the idea of trading geometric diversity for bandwidth. The costs and benefits of these various flight path geometries will be evaluated and will include all of the aspects that are related to SAR image quality, such as resolution, sidelobe levels, and artifacts, and operational aspects such as coverage rate. Because the primary objective of many SAR systems is to detect targets, the evaluation of the effects of geometric diversity on target detection performance will be emphasized. The analysis will be verified by applying the techniques to actual UHF SAR data and then evaluating the effect on target detection performance in those data. BENEFIT: The application of geometric diversity to Ultra-High Frequency Synthetic Aperture Radar (UHF SAR) has several potential benefits over using non-straight flight paths. Some of the benefits of using non-straight flight paths, such as curved, circular, and multiple flight paths may lead to new application areas. These benefits include: following curved roads with curved flight paths; finding highly directive targets, such as wires, with circular flight paths; forming three dimensional images with multiple parallel flight paths; and improving image resolution and target detection performance with the geometric diversity provided by non-straight flight paths. The project will include an in-depth analysis of the image characteristics associated with geometric diversity, as well as evaluation of the idea of trading geometric diversity for bandwidth. The analysis will be verified by applying the techniques to actual UHF SAR data and then evaluating the effect on target detection performance in those data.

* information listed above is at the time of submission.

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