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The NSW continuously operating reference stations (CORS) network CORSnet NSW currently offers a single-base real time kinematic (RTK) service and plans for the future involve it becoming network RTK functional. Network RTK allows for a greater distance between reference stations and rovers while still maintaining a high level of accuracy and precision. The Satellite Navigation and Positioning (SNAP) research group from the University of New South Wales (UNSW) has developed their own network RTK software, SNAPper. Last year Nicolas Tucker (2008) attempted to test the accuracy and precision of the SNAPper software against Leica’s Spider software. However problems with the CORSnet NSW infrastructure caused poor results from the SNAPper program and no results from the SpiderNET program.

This project repeated a similar experiment to Tucker (2008), however since the CORSnet NSW upgrades from last year problems occurred with the SNAPper program and use unable to be tested. Instead a comparison of SpiderNET network RTK and CORSnet NSW single-base RTK was completed. The comparison of the accuracy and precision of the two techniques occurred using the Chippendale, Villawood and Waterfall reference stations. Five SCIMS marks with class B or higher at 2, 10, 16, 19 and 24 km from Chippendale reference station were tested.

 

A Comparison of Network RTK and Single-base RTK

Author: Bradley Jackson

Supervisor: Craig Roberts