Joint Statistical Distribution of Multi-Baseline SAR Interferograms

Interferometric synthetic aperture radar (SAR) (InSAR) systems allow 3-D reconstruction of observed scene. In this paper, an innovative approach for phase unwrapping and digital elevation model (DEM) generation using multichannel InSAR data is presented. The proposed algorithm, exploiting both the amplitude and phase of the available complex data, is able to unwrap and simultaneously regularize the observed data. In particular, the exploitation of amplitude data within the unwrapping chain helps in preserving sharp discontinuities typical of urban areas. As a result, the technique provides accurate DEM reconstructions. For this aim, a Markovian approach, together with a new graph-cut-based optimization algorithm, has been considered. The method has been developed specifically to work in urban areas with very high resolution InSAR image stacks, being able to automatically compensate possible phase offsets. Results on both simulated and real case studies are reported, showing the effectiveness of the metho

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Joint Statistical Distribution of Multi-Baseline SAR Interferograms

Cited by 3 publications

References 9 publications

Maximum-likelihood estimation for multi-aspect multi-baseline SAR interferometry of urban areas

Maximum-likelihood estimation for multi-aspect multi-baseline SAR interferometry of urban areas

Reflectivity and DEM Estimation from Multi-baseline Complex SAR Signals

Urban Digital Elevation Model Reconstruction Using Very High Resolution Multichannel InSAR Data

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