Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/78704
PIRA download icon_1.1View/Download Full Text
DC FieldValueLanguage
dc.contributorDepartment of Land Surveying and Geo-Informatics-
dc.creatorZhang, L-
dc.creatorSun, Q-
dc.creatorHu, J-
dc.date.accessioned2018-09-28T01:17:20Z-
dc.date.available2018-09-28T01:17:20Z-
dc.identifier.issn2076-3417-
dc.identifier.urihttp://hdl.handle.net/10397/78704-
dc.language.isoenen_US
dc.publisherMolecular Diversity Preservation International (MDPI)en_US
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).-
dc.rightsThe following publication Zhang, L., Sun, Q., & Hu, J. (2018). Potential of TCPInSAR in monitoring linear infrastructure with a small dataset of SAR images: Application of the donghai bridge, china. Applied Sciences (Switzerland), 8(3), 425 is available at https://dx.doi.org/10.3390/app8030425-
dc.subjectInSARen_US
dc.subjectCoherent pointen_US
dc.subjectCo-registrationen_US
dc.subjectOffsetsen_US
dc.subjectDonghai Bridgeen_US
dc.subjectDeformation monitoringen_US
dc.titlePotential of TCPInSAR in monitoring linear infrastructure with a small dataset of SAR images : application of the Donghai Bridge, Chinaen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume8-
dc.identifier.issue3-
dc.identifier.doi10.3390/app8030425-
dcterms.abstractReliably monitoring deformation associated with linear infrastructures, such as long-span bridges, is vitally important to assess their structural health. In this paper, we attempt to employ satellite interferometric synthetic aperture radar (InSAR) to map the deformation of Donghai Bridge over a half of an annual cycle. The bridge, as the fourth longest cross-sea bridge in the world, located in the north of Hangzhou Bay, East China Sea where the featureless sea surface largely occupied the radar image raises challenges to accurately co-register the coherent points along the bridge. To tackle the issues due to co-registration and the limited number of synthetic aperture radar (SAR) images, we adopt the termed temporarily-coherent point (TCP) InSAR (TCPInSAR) technique to process the radar images. TCPs that are not necessarily coherent during the whole observation period can be identified within every two SAR acquisitions during the co-registration procedure based on the statistics of azimuth and range offsets. In the process, co-registration is performed only using the offsets of these TCPs, leading to improved interferometric phases and the local Delaunay triangulation is used to construct point pairs to reduce the atmospheric artifacts along the bridge. With the TCPInSAR method the deformation rate along the bridge is estimated with no need of phase unwrapping. The achieved result reveals that the Donghai Bridge suffered a line-of-sight (LOS) deformation rate up to 2.3 cm/year from January 2009 to July 2009 at the cable-stayed part, which is likely due to the thermal expansion of cables.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationApplied sciences, Mar. 2018, v. 8, no. 3, 425-
dcterms.isPartOfApplied sciences-
dcterms.issued2018-
dc.identifier.isiWOS:000428369400108-
dc.identifier.scopus2-s2.0-85044164366-
dc.identifier.artn425-
dc.description.validate201809 bcrc-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
Appears in Collections:Journal/Magazine Article
Files in This Item:
File Description SizeFormat 
Zhang_Potential_TCPInSAR_Linear.pdf6.68 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Version of Record
Access
View full-text via PolyU eLinks SFX Query
Show simple item record

Page views

187
Last Week
1
Last month
Citations as of Mar 24, 2024

Downloads

179
Citations as of Mar 24, 2024

SCOPUSTM   
Citations

17
Last Week
0
Last month
Citations as of Mar 28, 2024

WEB OF SCIENCETM
Citations

15
Last Week
0
Last month
Citations as of Mar 28, 2024

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.