Low Cost Sub-meter Accuracy Anytime, Anywhere

C. Ray

Abstract:	Fusion Numerics Inc, in collaboration with industry partners, has developed a complete end-to-end augmentation service for single-frequency GPS devices. The service provides post-processing worldwide without base station requirement and delivers real-time position corrections over commercial networks when a wireless connection is available. This service provides meter level positioning in environments and geographies where reliable augmentation isn't available and can utilize lowcost devices when desired. The augmentation service--A+GPS--consists of several integrated components: a software client implemented on a mobile device (rugged handheld, palmtop, or tablet PC) that handles GPS device communications, integration of real-time position corrections, data collection for postprocessing; a backend server accessible over the Internet which generates corrections for specific user locations; and a hosted post-processing service for calculation and delivery of corrected positions. The system has been operating in test mode for early users, and preliminary results have achieved consistent meter positioning accuracy on low-cost devices and submeter results with mid-range equipment. A variety of manufacturers devices have been used in the testing including Pharos, Garmin, Ublox, and Trimble. Geographic capability is worldwide and local GPS infrastructure is not required. Sub-meter for the rest of the world, at a low cost, is now possible. The alpha version is currently available and the beta version will be available by late 2006. Commercial availability is planned for early 2007.
Published in:	Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006) September 26 - 29, 2006 Fort Worth Convention Center Fort Worth, TX
Pages:	212 - 216
Cite this article:	Ray, C., "Low Cost Sub-meter Accuracy Anytime, Anywhere," Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006), Fort Worth, TX, September 2006, pp. 212-216.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In