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- Title
基于子带干涉技术监测大型桥梁形变.
- Authors
吴文豪; 李陶; 陈志国; 徐侃; 张校志
- Abstract
The bridge displacement responses can move from several centimeters to several meters induced by a combination of four major types of loading due to wind,temperature, highway,and rail-way. One of the main challenges of InSAR technique is phase unwrapping. One can take advantage of this wide band to split it into sub-bands and determine the phase-frequency gradient between the sub-band interferograms. This simulates a SAR system with a much longer carrier wavelength than the actual one, which makes it possible to monitor the meter-scale deformation. This paper presents the theory and method of split bandwidth interferometry in detail, and the effectiveness and advantage of split bandwidth interferometry was verified in feasibility of monitoring structural deformation of Tsingma Bridge under the influence of different factors.
- Publication
Geomatics & Information Science of Wuhan University, 2017, Vol 42, Issue 3, p334
- ISSN
1671-8860
- Publication type
Article
- DOI
10.13203/j.whugis20140306