GPS Reconstitution

Award Information
Agency: Department of Defense
Branch: Army
Contract: DAAE30-03-C-104
Agency Tracking Number: A022-3060
Amount: $119,950.00
Phase: Phase I
Program: SBIR
Awards Year: 2003
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
11350 Random Hills Rd., Suite 710, Fairfax, VA, 22030
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Suman Ganguly
 (703) 385-7717
Business Contact
 Suman Ganguly
Title: President
Phone: (703) 385-7717
Research Institution
This proposal describes a plan to design and develop techniques to utilizing legacy GPS receiver based systems, in the even of failures in GPS signals. A variety of situations are considered and we propose to perform simulations under thesesituations, where diverse mitigation schemes are needed. The mitigation schemes include satellite and airborne devices, rocket launched system as well as ground based systems. Generation of GPS replacement signals involve issues such as near-far problem,platform dynamics, frequency-offset, spoofing, pulsed operation, time synchronization, etc.We propose to use versatile software and hardware based signal simulators and GPS receivers developed by us to model these diverse conditions and situations. The modeling tools can be easily reconfigured for simulation and later be used for real-timedemonstration. During Phase I, we investigate different situations and provide performance characteristics of legacy GPS receivers under the different situations. Finally, we demonstrate the validity by performing live demonstration using our hardwareunits. Such system will find numerous applications in DoD and civilian sectors. Applications range from Pseudolites, Simulator development, various GPS development efforts and so-on.

* information listed above is at the time of submission.

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