GPS Signal Modernization Update Summary

J. K. Holmes and S. Raghavan

Abstract:	This paper discusses the planned updates of the block IIM and IIF GPS satellites, including the addition of three military signals. In particular a brief review of the Legacy signals is presented, followed by a description of the new military signal, the M code signal (with its data and data- less components). Next the civil signal, which is the replacement C/A code for L2 is discussed. Interplex combining is then presented. Interplex modulation combines three signals and provides constant envelope to the power amplifier by producing an intermodulation term. Finally the new L5 civilian signal is elucidated.
Published in:	Proceedings of the 58th Annual Meeting of The Institute of Navigation and CIGTF 21st Guidance Test Symposium (2002) June 24 - 26, 2002 Hyatt Regency Hotel Albuquerque, NM
Pages:	545 - 554
Cite this article:	Holmes, J. K., Raghavan, S., "GPS Signal Modernization Update Summary," Proceedings of the 58th Annual Meeting of The Institute of Navigation and CIGTF 21st Guidance Test Symposium (2002), Albuquerque, NM, June 2002, pp. 545-554.
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