Design of Internet Based Reference Station Network for New Augmentation System

Hisakazu Hada, Yuusuke Kawakita, Suguru Yamaguchi and Jun Murai

Abstract:	In this paper, we describe New Reference Station Network system based on the Internet and Inter- net Based Augmentation Network(IBAN) for glob- al and seamless augmentation. In these days, Augmentation system is required not only for aviation applications but for any GPS applications. New Global Navigation Satellite Sys- tem needs such capabilities. Therefore, the aug- mentation system that can be used for everyone is required and it will be recognized as one of the important infrastructure for daily life. In this system, we use the Propagation Sta- tion(PS) to support many clients. A PS is located between the observation stations and rover clients. A PS gathers correction information from obser- vation stations and re-calculates for each request from rover hosts. Therefore, PS can provide suit- able information for each rover host. Each obser- vation station can provide its correction data to a number of PS. PS can also be connected another PS to support many clients. We propose a request based communication protocol to transfer correction data. The pro- tocol between observation station and propaga- tion stations, is based on TCP that is a reliable connection-oriented protocol. TCP based proto- col is suitable for connecting stations, because it provides reliability and goes through the firewall easily. In conclusion, we propose our new protocol to provide reference station network and new aug- mentation system based on the Internet. This sys- tem is now developing, but we will present system implementation and its result.
Published in:	Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000) September 19 - 22, 2000 Salt Palace Convention Center Salt Lake City, UT
Pages:	528 - 534
Cite this article:	Hada, Hisakazu, Kawakita, Yuusuke, Yamaguchi, Suguru, Murai, Jun, "Design of Internet Based Reference Station Network for New Augmentation System," Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000), Salt Lake City, UT, September 2000, pp. 528-534.
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