Current carrier phase-based Real-Time Kinematic (RTK) positioning at the centimetre accuracy level requires the combination of observations from at least two GPS receivers. One significant drawback for this approach, however, is the practical constraints imposed by the requirement that simultaneous observations be made at the user and reference stations, and that the user stations be within the vicinity of the reference station typically up to 20 kilometres. Development of methods and algorithms to eliminate such constraints for increased flexibility and accessibility using RTK therefore presents a current trend.
This Sub-Commission, formed under Commission 4 ˇ°Positioning & Applicationsˇ±of IAG , will identify and encourage investigation into the important research issues and problems for the development of next generation RTK technologies.
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Gao's Positioning and Mobile Information Systems.
Department of Geomatics Engineering
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