GPS Modernization and Beyond

Ranwa Haddad, Karl Kovach, Rhonda Slattery, James Gillis

Peer Reviewed

Abstract:	The US Government embarked on a modernization effort for GPS starting in the late 1990s. As a result, 8 additional signals were defined – along with numerous other capabilities – and acquisitions were initiated to implement the modernized signals and capabilities, in the form of the IIR-M, IIF and GPS III satellite blocks and upgrades to the ground segment. Modernized GPS is currently being deployed and used worldwide, and the performance of the system continues to improve to remain the gold standard for GNSS. The paper describes how GPS is currently being modernized and quantifies the impact of this current round of modernization on GPS performance. Given this new baseline, opportunities and drivers are identified for the next round of capabilities.
Published in:	2020 IEEE/ION Position, Location and Navigation Symposium (PLANS) April 20 - 23, 2020 Hilton Portland Downtown Portland, Oregon
Pages:	399 - 406
Cite this article:	Haddad, Ranwa, Kovach, Karl, Slattery, Rhonda, Gillis, James, "GPS Modernization and Beyond," 2020 IEEE/ION Position, Location and Navigation Symposium (PLANS), Portland, Oregon, April 2020, pp. 399-406.
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