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Global Positioning System (GPS) Jamming Situational Awareness for Naval Surface…

Award Information

Department of Defense
Award ID:
Program Year/Program:
2002 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Toyon Research Corp.
6800 Cortona Drive Goleta, CA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2002
Title: Global Positioning System (GPS) Jamming Situational Awareness for Naval Surface Fire Support (NSFS)
Agency / Branch: DOD / NAVY
Contract: N00178-02-C-3009
Award Amount: $100,000.00


"Toyon Research Corporation proposes to research and to develop a low-cost, jammer localization and characterization network, as well as the analysis tools necessary to ensure that the system provides valuable assistance in battlefield awareness andmission planning. The system will consist of a single control station and two or more remote stations that can be ground-based or UAV based. The primary focus of this effort will be to locate sources of GPS interference, such as jammers. In order toachieve the highest localization accuracy possible, while keeping costs low, the proposed system will be a hybrid implementation of a bearings-only measurement system and a time-difference-of-arrival (TDOA) system. Each remote station will synchronouslysample and store the monopulse direction-finding (DF) RF information and compute a bearing measurement. These bearing measurements, along with power measurements, will then be transmitted to the control station and be used to determine whether or not anyof the measurements are potentially from the same emitter. In addition, the control station will periodically request that the remote stations transmit the stored samples, which correspond to the previously submitted bearing measurements, for furtherprocessing. At this point, both TDOA and differential-Doppler (DD) techniques can be utilized to further improve the initial bearings-only emitter location estimates. The loss of GPS signal lock due to

Principal Investigator:

Kenan O. Ezal
Senior Analyst

Business Contact:

Michael L. VanBlaricum
Small Business Information at Submission:

Toyon Research Corp.
Suite A, 75 Aero Camino Goleta, CA 93117

EIN/Tax ID: 953526665
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No