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Comprehensive GPS Geolocation Algorithm to Enhance Command and Control

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 36040
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 1997
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
1601 N. Kent St.
Arlington, VA 22209
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Michael H. Reilly, Ph.d.
 (703) 812-8500
Business Contact
Phone: () -
Research Institution

Geoloc will create and test an innovative GPS receiver software algorithm for processing Global Positioning System radio beacon data. The objective is to increase the accuracy of the single-frequency receiver's position determination by simultaneously solving for all unknown variables in the geolocation problem, rather than approximating them as is common in existing receiver algorithms. The objective of the Phase I research is to demonstrate accuracy comparable to that obtainable by differential GPS (e.g., one to a few meters) from single-frequency autonomous receivers with using data links to reference receiver (i.e., differential method). Byproducts will include ionospheric and tropospheric specification. GPS satellite beacon data broadcast on the L1 frequency (1575.42MHz), received at a known location, will be processed with Kalman filtering and discrete inverse theory and the position solution will be compared with the receiver's known location. After confirming the technical feasibility of its method, Geoloc will investigate the algorithm's adaptability to real time kinematic military and commercial geolocation applications. Geoloc's Phase I report will describe the algorithm's performance characteristics as they would apply to Command and Control in the future amphibious warfare environment.

* Information listed above is at the time of submission. *

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