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DEDICATED GPS SOFTWARE FOR MONITORING DEFORMATION IN OPEN-PIT MINES
Investigators
A/Professor Mike Stewart
Mr Troy Forward
Mr Minghai Jia, National Mapping Division, Geoscience Australia
Funding Sources
Australian Research Council, Large Grant
Division of Engineering and Science Postgraduate Scholarship
International Postgraduate Research Scholarship
Status
Started 1998, ongoing
Summary
Generic, off-the-shelf GPS processing software packages, however, do
not take advantage many of the specific algorithmic issues that can be
implemented to increase levels of precision to that required for the monitoring
of geometrical deformations. When this monitoring takes place in or around
steep slopes, syetematic errors such as slope induced multipath can significantly
degrade position solutions. As such, dedicated software is required
to exctract the most from the GPS observations.
As a result, a number of application-specific software packages have
been developed to target the specific area of GPS positioning for the monitoring
of geometrical deformations.
Results
Both the software application GPS Mailbox, and Gather GPS make use
of a base processing engine called GGProcS (GPS/GLONASS
Processing Software). This processing engine
offers the following features:
- Accumulated Least Squares Carrier-phase Double Difference Processing
- Multi-Reference Station Processing Capabilities
- LAMBDA Ambiguity Resolution
- Automatic/Manual Processing Options
- Multi-Session Capabitities
Following are a number of Screen Captures of the Current
Applications:
GPS MailBox
Gather GPS
note: Gather GPS has been developed for the Curtin University Geodesy Group by Hascom
International Pty Ltd
For a short presentation
on the use of Steep Slope Stability Monitoring using Integrated Satellite
Positioning Systems by Troy
Forward.
References
Forward, T. (1999) Implementation Issues of an Integrated Satellite-Based
Monitoring System for Open-Pit Mine Walls, Proceedings of the 6th South
East Asian Surveyors Congress, Fremantle, Western Australia, Nov 1-6 pp.
26-36.
PDF reprint.
Forward, T. (1998) Integrated GPS and GLONASS Satellite Positioning,
M.Sc. Thesis, Curtin University of Technology, Western Australia, 160 pp.
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