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Global Positioning System (GPS) User Equipment (UE) Time Aiding Using WWV/WWVB

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2010 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
AF 09-152
Solicitation Number:
Small Business Information
Toyon Research Corporation
CA Goleta, CA 93117-3021
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2010
Title: Global Positioning System (GPS) User Equipment (UE) Time Aiding Using WWV/WWVB
Agency / Branch: DOD / USAF
Contract: FA8650-10-M-1842
Award Amount: $100,000.00


Toyon proposes to design, develop and build a GPS system that uses external RF signals for timing estimation in order to acquire Precise Positioning Service (P/Y/M-code) signals under jamming conditions where the GPS C/A-code cannot be used. The RF signals will be selected to provide sub-second timing accuracy in order to limit the substantial computation involved in acquiring PPS signals in low signal-to-noise ratio environments. Toyon will develop a highly efficient PPS signal acquisition unit and integrate it into our GPS receiver, targeting PPS acquisition of a given satellite in fewer than 10 sec from availability of the timing reference. The RF timing reference developed under this program can also be used as a synchronization signal to allow PPS signal acquisition in other GPS receivers. BENEFIT: The C/A-code is easily jammed due to its known modulation code. PPS (P/Y/M-code) signals for accurate navigation are difficult to acquire without use of the C/A-code signals for a timing reference. The GPS receiver technology developed under this program will allow hand-held GPS receivers, which must be shut down to conserve battery power, to acquire PPS signals in a jamming environment.

Principal Investigator:

Roger J. Helkey
Senior Scientist

Business Contact:

Marcella R. Lindbery
Director of Finance and Contracts
Small Business Information at Submission:

Toyon Research Corp.
6800 Cortona Drive Goleta, CA 93117

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