Nexteq i-PPP: A Low-cost world-wide Precise Point Positioning System and Service

Yufeng Zhang and Suen Lee

Abstract:	Despite being intensively studied for more than a decade, Precise Point Positioning (PPP) technology remains limited to a niche because of long initialization times and costly satellite data broadcast links. These two issues are the key obstacles to PPP technology being more widely used. This paper introduces Nexteq i-PPP, the first modern PPP technology to properly solve the long initialization time problem. Nexteq i-PPP is capable of 0.5 m 2D global horizontal accuracy with single frequency GNSS receivers and virtually no initialization time. Further, as the Nexteq i-PPP system broadcasts the correction data primarily through the Internet, it greatly reduces the cost of data link and allows the use of common, off-the-shelf hardware to enable access to i-PPP corrections.
Published in:	Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011) September 20 - 23, 2011 Oregon Convention Center, Portland, Oregon Portland, OR
Pages:	1453 - 1459
Cite this article:	Zhang, Yufeng, Lee, Suen, "Nexteq i-PPP: A Low-cost world-wide Precise Point Positioning System and Service," Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011), Portland, OR, September 2011, pp. 1453-1459.
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