IEEE Geoscience and Remote Sensing Magazine - March 2020 - 22

A Review of Time-Series
Interferometric SAR
Techniques

©ISTOCKPHOTO.COM/SANFEL

A tutorial for surface deformation analysis

FEIYANG XUE, XIAOLEI LV, FANGJIA DOU, AND YE YUN

O

ver the past two decades, the time-series interferometric synthetic aperture radar (InSAR) technique
has been developed to estimate surface deformation parameters. Because of its ability to monitor large-scale deformation with millimeter accuracy, the time-series InSAR
technique has been applied in many fields, such as urban
infrastructure monitoring, mining subsidence, and landslides. The obtained, long-term, time-series cumulative
deformation is of great value to the study of its regularity.

Digital Object Identifier 10.1109/MGRS.2019.2956165
Date of current version: 4 February 2020

22

0274-6638/20©2020IEEE

This article reviews the time-series InSAR technique
and its applications. First, we introduce the development
and basic principle of the time-series InSAR technique.
Although there are many frameworks for time-series InSAR processing, they share the same basic principle, that
is, the space-time 3D phase is used to retrieve the signal
of interest. In addition, they all refer to some similar processing steps such as image coregistration, generating the
interferograms, spatial baseline estimation, phase unwrapping, parameter estimation, and reference network
construction. Second, we classify many current timeseries InSAR techniques from different perspectives so
IEEE GEOSCIENCE AND REMOTE SENSING MAGAZINE

MARCH 2020



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IEEE Geoscience and Remote Sensing Magazine - March 2020

Table of Contents for the Digital Edition of IEEE Geoscience and Remote Sensing Magazine - March 2020

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