Developing a Network-Based RTK System Using Victorian Permanent GPS Tracking Network

K. Zhang, C. Roberts

Abstract:	A dedicated GPS lab at RMIT in partnership with Land Victoria, Department of Sustainability and Environment, has recently been established to facilitate a series of GPS-related research and development projects. The laboratory will exploit the cooperative GPSnet infrastructure and provide a valuable contribution towards the implementation and delivery of real-time global navigation satellite system (GNSS) services to a wide range of Victorian users. In addition, the laboratory will provide a focused research facility for real time GNSS research, products and services with an opportunity to create potential commercial partnerships. This paper presents recent developments of the network-based real-time kinematic positioning (NRTK) method. The concept and recent international development in network based RTK is overviewed. The Victorian permanent GPS tracking network (GPSnet) system, its operation, current status and vision of future development into a real-time high precision positioning service will be outlined. Preliminary investigation into existing communication media is presented in terms of protocol, cost, coverage and portability of user equipment. This includes a discussion of the NRTK "test bed" system with a central data processing function located at the RMIT GPS lab. Recent developments of the third generation mobile communication technology in Melbourne are also presented. The ultimate aim of the project is to develop a State-wide satellite-based geodetic infrastructure capable of providing multiple-mode real-time location services with an easy access and in a cost-effective manner.
Published in:	Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003) September 9 - 12, 2003 Oregon Convention Center Portland, OR
Pages:	1428 - 1439
Cite this article:	Zhang, K., Roberts, C., "Developing a Network-Based RTK System Using Victorian Permanent GPS Tracking Network," Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003), Portland, OR, September 2003, pp. 1428-1439.
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