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

• Main Authors: LIN Hui, MA Peifeng, WANG Weixi
• Format: Article
• Language: zho
• Published: Surveying and Mapping Press 2017-10-01
• Series: Acta Geodaetica et Cartographica Sinica
• Subjects: InSAR; MT-InSAR; PS; urban infrastructure; deformation monitoring
• Online Access: http://html.rhhz.net/CHXB/html/2017-10-1421.htm

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.