Signal Design Guidelines for Navigation Satellite System Design

Steven Lazar, John Clark, David Turner

Abstract:	This paper describes some of the considerations that influence the design of new civil signals for satellite based navigation systems. The chief driver is the availability of suitable radio frequency spectrum, which has both technical and non-technical dimensions. Specific signal design features will be shown to be factors that will determine the suitability of specific frequency allocations for the signal. In particular, the question of whether the spectrum is to be exclusively allocated to the new signals or to be shared with other navigation satellite systems will heavily influence the choices made and subsequently system performance. Non-technical issues will also be shown to govern spectral choices and signal characteristics, due to factors such as sovereignty and economics. The specific applications for the navigation signals will determine if the resulting radio frequency environment, including intra-system interference, will meet the user requirements. The interactions between other design parameters, such as power and navigation message rate, on spectrum suitability and performance are also described in this paper.
Published in:	Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999) September 14 - 17, 1999 Nashville, TN
Pages:	2079 - 2086
Cite this article:	Lazar, Steven, Clark, John, Turner, David, "Signal Design Guidelines for Navigation Satellite System Design," Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999), Nashville, TN, September 1999, pp. 2079-2086.
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