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

Award Information
Agency: Department of Defense
Branch: Army
Contract: W31P4Q-08-C-0087
Agency Tracking Number: A062-014-1901
Amount: $730,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2008
Solicitation Year: 2006
Solicitation Topic Code: A06-014
Solicitation Number: 2006.2
Small Business Information
6800 Cortona Drive, Goleta, CA, 93117
DUNS: 054672662
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Andrew Richen
 Senior Analyst
 (805) 968-6787
Business Contact
 Marcella Lindbery
Title: Director of Finance and C
Phone: (805) 968-6787
Email: mlindbery@toyon.com
Research Institution
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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