Acta Geodaetica et Cartographica Sinica ›› 2017, Vol. 46 ›› Issue (10): 1421-1433.doi: 10.11947/j.AGCS.2017.20170339

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Urban Infrastructure Health Monitoring with Spaceborne Multi-temporal Synthetic Aperture Radar Interferometry

LIN Hui1,2, MA Peifeng1,2,3, WANG Weixi4   

  1. 1. Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Hong Kong, China;
    2. Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518057, China;
    3. Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China;
    4. Shenzhen Research Center of Digital City Engineering, Shenzhen 518057, China
  • Received:2017-06-21 Revised:2017-09-11 Online:2017-10-20 Published:2017-10-26
  • Supported by:
    The Open Fund of Key Laboratory of Urban Land Resources Monitoring and Simulation,Ministry of Land and Resources;The National Key Basic Research Program of China (2015CB954103);The National Natural Science Foundation of China (41601356)

Abstract: Synthetic aperture radar interferometry (InSAR) is a well developed earth observation technology in the last two decades. It can measure minute movements and digital elevation model with high accuracy over large areas by inteferometric processing of two SAR images. In particular, multi-temporal InSAR (MT-InSAR) can achieve centimetric to millimetric deformation monitoring by properly removing atmospheric delay using multiple SAR images. This paper gives a review of current cutting-edge MT-InSAR algorithms. The focus is on the key technologies of MT-InSAR and the primary application fields for urban infrastructural health monitoring. Finally, we give some suggestions for the future development of this technology.

Key words: InSAR, MT-InSAR, PS, urban infrastructure, deformation monitoring

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