ABSTRACT
In this chapter, we will introduce SAR interferometry (InSAR): theory, errors, and applications. We will derive the differential InSAR equation that relates the InSAR phase, the baselines of two ranges, and geophysical parameters under interferometric conditions. We will discuss the related bias and random errors and cover the correction methods on orbital error and the atmospheric phase delay. We will apply InSAR to detect deformation. We will also cover ScanSAR-InSAR for wide-area deformation monitoring and a time series InSAR for slowly moving subsidence detection. The examples given are from JERS-1, ALOS, ALOS-2, and Pi-SAR-L2.
