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Title: Monitoring building shift using a robust speckle correlation encoder scheme
Authors: Ng, T.W. 
Yong, W.B.
Keywords: Displacement
Environmental monitoring
Speckle correlation encoder
Issue Date: May-2002
Source: Ng, T.W.,Yong, W.B. (2002-05). Monitoring building shift using a robust speckle correlation encoder scheme. Measurement Science and Technology 13 (5) : 803-806. ScholarBank@NUS Repository.
Abstract: Optical methods are advantageous in monitoring the shift in buildings. In this work, the speckle correlation encoder is investigated for this purpose. The effect of decorrelation due to lateral motion in limiting the accuracy of speckle correlation encoders is discussed and verified in this work. A method of neighbourhood addressing using a two-dimensional array detector is proposed and shown to overcome this limitation. Experimental results verify the feasibility of using this approach for building shift monitoring.
Source Title: Measurement Science and Technology
ISSN: 09570233
DOI: 5/320
Appears in Collections:Staff Publications

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