A Simple Model for C/A-Code Self-Interference

Christopher J. Hegarty

Abstract:	The GPS C/A-code is the most widely utilized GNSS signal today. The C/A-code design includes: (1) a short (length-1023) spreading code that repeats every one millisecond, and (2) a low (50-bps) data rate. These two characteristics can lead to undesired interactions between received C/A-code signals within user equipment. In this paper, a simple model is derived for predicting the impact of C/A-code self-interference on receiver performance. The accuracy of the model in predicting C/A-code self-interference is assessed through the use of a high-fidelity GPS receiver software simulation.
Published in:	Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014) September 8 - 12, 2014 Tampa Convention Center Tampa, Florida
Pages:	3484 - 3494
Cite this article:	Hegarty, Christopher J., "A Simple Model for C/A-Code Self-Interference," Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014), Tampa, Florida, September 2014, pp. 3484-3494.
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