New Developments in the SWEPOS Network

Gunnar Hedling and Bo Jonsson

Abstract:	A network of GPS reference stations covering Sweden has been under development since 1991. Currently 21 stations are operating. Twelve of these are also acting as real-time DGPS reference stations. The purpose of the network is to: - provide single- and dual-frequency data for relative GPS measurements. - provide DGPS corrections for broadcasting to real- time users. - provide data for geophysical research. - act as high precision control points for Swedish GPS users. - monitor the integrity of the GPS system. During 1996 the network will be updated to real time capacity using leased lines and the TCP/lP protocol. Raw measurements and DGPS and RTK corrections will be transferred directly to a control centre, where the data will be quality checked, archived and from where the stations are controlled. Data for post-processing can be fetched from the control centre via a BBS or a WWW-server. Distributors of real time DGPS and RTK can get SWEPOS real time corrections from the control centre by a TCP/lP connection. As a test, integrity monitoring of DGPS corrections will be done at the control centre using data from the SWEPOS station that lies closest to the source station of the DGPS corrections. Experiments with the transmission of real time kinematic corrections (RTK) from the SWEPOS stations will also be done. First using a GSM’ cellular phone and later using the DARC FM Sub- Carrier data channel. This paper contains discussions and experiences from the implementation of the new SWEPOS network.
Published in:	Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996) September 17 - 20, 1996 Kansas City, MO
Pages:	1803 - 1808
Cite this article:	Hedling, Gunnar, Jonsson, Bo, "New Developments in the SWEPOS Network," Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996), Kansas City, MO, September 1996, pp. 1803-1808.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In