Low Elevation Nulling of Global Positioning System (GPS) Jammers for Ground-Based Platforms

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$730,000.00
Award Year:
2008
Program:
SBIR
Phase:
Phase II
Contract:
W31P4Q-08-C-0087
Award Id:
76914
Agency Tracking Number:
A062-014-1901
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
6800 Cortona Drive, Goleta, CA, 93117
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
054672662
Principal Investigator:
Andrew Richen
Senior Analyst
(805) 968-6787
arichen@toyon.com
Business Contact:
Marcella Lindbery
Director of Finance and C
(805) 968-6787
mlindbery@toyon.com
Research Institution:
n/a
Abstract
A number of Army systems today depend on GPS for position and timing information. Reception of GPS signals on the battlefield is threatened by the effectiveness of ground-based GPS jamming devices, which are easy to construct and available from a number of sources worldwide. There is a need to improve the resistance of Army systems to ground-based jamming without incurring the cost or physical footprint of a fully adaptive GPS anti-jam antenna system. Building on the results of a successful Phase I effort, Toyon Research Corporation proposes to develop a GPS receive antenna that detects the presence of jamming and automatically switches its receive pattern between a nominal and a ground-nulling state. The antenna's ground-nulling mode will provide at least 25 dB of jamming attenuation to the GPS receiver, compared to an isotropic antenna. This attenuation level can be augmented with other ground-nulling techniques, including radio frequency (RF) absorber and choke rings. The antenna system will be designed to operate at both the L1 and L2 frequency bands, and will fit within a circular footprint measuring 1.5 inches in diameter and 5.5 inches tall.

* information listed above is at the time of submission.

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