Improvements to "A Software-Defined GPS and Galileo Receiver: Single-Frequency Approach"

Eric Vinande and Dennis Akos

Abstract:	This paper presents a brief overview of an open-source, MATLAB software Global Positioning System (GPS) receiver. All functions from signal acquisition to position solution are described. The focus is then turned to developments at the University of Colorado, Boulder related to the software receiver. A Universal Serial Bus (USB) intermediate frequency (IF) data sampler module is described that researchers can use to collect data to support their research. Student projects that were the outcome of a graduate level global navigation satellite system (GNSS) receiver architecture course are also described. These projects included signal acquisition and tracking in a field-programmable gate array (FPGA), multi-correlator signal tracking, L2C acquisition, and Galileo signal tracking. The validity of the existing software receiver as a base for future research was confirmed by the success of these projects. The results from Wide Area Augmentation System (WAAS) ranging, WAAS correction decoding, and navigation solution filtering are described all with the intent of improving positioning accuracy.
Published in:	Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007) September 25 - 28, 2007 Fort Worth Convention Center Fort Worth, TX
Pages:	2230 - 2236
Cite this article:	Vinande, Eric, Akos, Dennis, "Improvements to "A Software-Defined GPS and Galileo Receiver: Single-Frequency Approach"," Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007), Fort Worth, TX, September 2007, pp. 2230-2236.
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