Acqusition of high-precision digital terrain model using P-band airborne repeat-pass SAR interferometry

Abstract

Low-frequency airborne repeat-pass interferometric synthetic aperture radar (InSAR) system has the characteristics of large azimuth-variant motion errors, low coherence, etc., leading to incapability of some of the algorithms which exhibit well in the narrow-beam systems. This paper proposed a strategy for P-band airborne repeat-pass InSAR system to obtain high-precision digital terrain model (DTM). Real data are used to validate the proposed strategy.