GPS Signal Reconstitution

Suman Ganguly, Aleksandar Jovancevic, Michael Kirchner, Joseph Noronha and Slavisa Zigic

Abstract:	Increasing dependency on GPS signals is demanding the reliable availability of navigational signals under every possible situation. GPS signals can be interrupted by non-availability of GPS satellites, blockage of the signals or by jamming and interference. In such scenarios, accurate navigation using GPS receivers is still possibly by transmitting GPS like signals through pseudolites. The pseudolite transmitters can be ground based, airborne, satellite based or howitzer launched. In order to meet the diverse requirements the navigation message format is altered. A single navigation message to represent any condition is described. Implementation of such a system is currently underway. We describe several issues associated with such an implementation. The system can be adapted for various geo-location applications for both civilian and military sectors.
Published in:	Proceedings of the 17th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2004) September 21 - 24, 2004 Long Beach Convention Center Long Beach, CA
Pages:	592 - 603
Cite this article:	Ganguly, Suman, Jovancevic, Aleksandar, Kirchner, Michael, Noronha, Joseph, Zigic, Slavisa, "GPS Signal Reconstitution," Proceedings of the 17th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2004), Long Beach, CA, September 2004, pp. 592-603.
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