Lim, M. C. and Setan, H. and Othman, R. and Chong, A. K. (2012) Deformation detection for ISKANDARnet. Survey Review , 44 (326). pp. 198-207. ISSN 0039-6265
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Official URL: http://dx.doi.org/10.1179/1752270611Y.0000000019
Identification Number or DOI: doi: 10.1179/1752270611Y.0000000019
Tragedies and disasters in the past have shown the threats that are associated with large construction projects. A timely identification of precursory movements may save lives and minimise collateral damage. An advanced global positioning system (GPS) continuously operating reference station network known as ISKANDARnet is operated continuously to detect deformations in Iskandar, State of Johor, Malaysia. In this study, three GPS continuously operating reference stations from the ISKANDARnet were used as the object stations along four nearby international GNSS service stations (NTUS, XMIS, COCO and PIMO) used as reference stations. The GPS data were streamed and processed by a GPS processing software module, Bernese processing engine. A deformation analysis module was developed using the MATLAB programming language to carry out continuous two-epoch analyses. The development also involves the implementation of the iteratively weighted similarity transformation method and a final S-transformation to analyse the GPS data. By applying these techniques, unstable object points were identified within the monitoring network and accurate displacement vectors were computed. The time-based variation of the displacements was shown in this paper. Test results showed that the system performed satisfactorily.
|Item Type:||Article (Commonwealth Reporting Category C)|
|Additional Information:||Permanent restricted access to published version due to publisher copyright policy (Maney Publishing)|
|Uncontrolled Keywords:||GPS; deformation monitoring; continuously operating reference station; Malaysia|
|Fields of Research (FOR2008):||09 Engineering > 0909 Geomatic Engineering > 090903 Geospatial Information Systems|
08 Information and Computing Sciences > 0806 Information Systems > 080606 Global Information Systems
12 Built Environment and Design > 1204 Engineering Design > 120404 Engineering Systems Design
|Socio-Economic Objective (SEO2008):||E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering|
|Deposited On:||06 Aug 2012 12:13|
|Last Modified:||05 Mar 2013 11:38|
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