这本文档是ESA欧空局出版物，这个PDF将PartA,B,C三部分合并。对InSAR的干涉解释比较清晰，适合入门学习。 This training manual introduces and explains Interferometric Synthetic Aperture Radar (InSAR), including applications for data from the Envisat ASAR sensor and how to combine Envisat and ERS images to produce interferograms and differential interferograms.