An Open Architecture GPS Receiver Using Just 8 Off-the-Shelf Chips for All-in-View Survey-Quality Positioning at Consumer Prices

Phillip Mattos

Abstract:	GPS for first-fit installation in cars, for weather balloons and container-tracking require very low cost with rapid un-aided start-up. Such costs are achievable only by building from the chip-level, integral with the vehicle electronics. Achieving low-costs from day one needs off-the-shelf silicon and licensable software, and these also support the requirement for rapid time to market. Every GPS requirement is different, and most have an external processor integrating multiple sensors. The integrated, software approach allows a single CPU to perform all these tasks, minimising both hardware costs and the costs related to interfacing separate systems together, in both hardware and software terms. The system described achieves the maximum performance available from the GPS signal, supporting 12 channels with full differential carrier phase tracking on them all. This allows the same design effort to be spread over many different applications, with product differentiation solely in the ROM contents.
Published in:	Proceedings of the 7th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1994) September 20 - 23, 1994 Salt Palace Convention Center Salt Lake City, UT
Pages:	1061 - 1066
Cite this article:	Mattos, Phillip, "An Open Architecture GPS Receiver Using Just 8 Off-the-Shelf Chips for All-in-View Survey-Quality Positioning at Consumer Prices," Proceedings of the 7th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1994), Salt Lake City, UT, September 1994, pp. 1061-1066.
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