An Open Source AGPS/DGPS Capable C-coded Software Receiver

S. Gleason, M. Quigley, P. Abbeel

Abstract:	The benefits of software receivers are well known and over the past several years their potential applications have increased significantly. Software receivers are a great tool for learning and designing GNSS receivers and hold the potential to dramatically increase the range of applications and reduce cost of a variety of navigation systems. It was thought desirable to make freely available to the GNSS community a software receiver that had a reasonably high performance specification and would make a valuable tool to those working across many areas of GNSS research and development. To this end we have developed an open source software receiver, written entirely in C that has the capability to calculate a position solution using short data sets in only a few minutes on a standard laptop computer. This is accomplished using an efficient processing design and external aiding data, provided in the form of IGS ephemeris files. Additionally, the receiver is configurable to accept differential corrections, such as those provided by the Wide Area Augmentation System (WAAS) in the U.S. This receiver is included in the book GNSS Applications and Methods published by Artech House [1], supported by the web site www.gnssapplications.org [2]. The receiver is compatible with the SiGe data sampler, but has been designed with a generic and flexible interface to allow for easy customization into other environments. This presentation will overview the development and design of the receiver including and overview of the free tools needed for operating, building and post-processing.
Published in:	Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009) September 22 - 25, 2009 Savannah International Convention Center Savannah, GA
Pages:	1926 - 1931
Cite this article:	Gleason, S., Quigley, M., Abbeel, P., "An Open Source AGPS/DGPS Capable C-coded Software Receiver," Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009), Savannah, GA, September 2009, pp. 1926-1931.
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