GPS Network Design and Error Mitigation for Real-Time Continuous Array Monitoring Systems

several projects in GPS rapid static and kinematic positioning, orbit determination and deformation analysis. From 1994, he has been studying at the School of Geomatic Engineering, The University of New South Wales, as a full-time PhD student under the supervision of Prof Chris Rizos. His research focus is on GPS rapid static and kinematic positioning. Chris Rizos is an Associate Professor in the School of Geomatic Engineering, The University of New South Wales. He is leader of the Satellite Navigation and Positioning Group within the Geodesy Laboratory, which has as its focus the development of algorithms for data processing which are appropriate for a variety of static and kinematic applications of GPS. In particular the research activities relate to on-the-fly ambiguity resolution, real-time systems and quality control, and innovative GPS applications such as continuos array monitoring systems. In this paper a near real-time (typically a baseline update once per hour, or once per day) continuous array system, with at least three dual-frequency GPS receivers connected to the IGS network, and many single frequency receivers, is proposed for monitoring applications covering a region of 50km radius. A weighted differential GPS method, appropriate for the suggested array design, can be implemented in order to eliminate or mitigate the orbit bias, including the effects of SA. A local area epoch-by-epoch and satellite-by-satellite ionospheric delay model, determined using