Endot, Ernyza and Setan, Halim and Md Som, Z A (2004) Development of a low-cost software for 2D deformation detection in geodetic network. In: International Symposium and Exhibition on Geoinformation (ISG) 2004, 21-23 Sept 2004, Kuala Lumpur, Malaysia.
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Deformation monitoring in Malaysia has become more important nowadays due to the increasing risk of hazardous tragedies such as landslide, subsidence and structural movement in engineering structures. This paper focuses on the development of a low-cost software for deformation detection using Fredericton approach (2D applications). This in-house software (FREDY03) is developed under windows environment. Fredericton approach, which is based on the analysis of the invariant functions of displacements, concisely performs the analysis and least squares fitting of changes of distances and angles derived from the adjusted (minimum constraints) coordinates. This software consists of two modules: least square estimation (LSE) and deformation detection analysis. For verification, the results from FREDY03 are compared to our in-house software, DEFORM99 (via Congruency Testing). The results indicate that both approaches (Fredericton vs Congruency) give similar outcome on the stability status of the monitoring stations. Consequently, users can determine deformation detection between two epochs using the developed low-cost software.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||deformation analysis, DEFORM99, Quasi observation|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)|
|Divisions:||Geoinformation Science And Engineering (Formerly known)|
|Deposited By:||En. Tajul Ariffin Musa|
|Deposited On:||03 Mar 2007 05:14|
|Last Modified:||01 Jun 2010 02:53|
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