Estimation of terrain elevation by multifrequency interferometric wide band SAR data

We present a phase unwrapping method using a maximum likelihood estimation technique together with frequency diversity information to reconstruct highly discontinuous ground elevation profiles. Frequency diversity can be obtained by considering the interferograms obtained by different couples of subband images.

[1]  Anil K. Jain,et al.  Two-dimensional phase unwrapping using a block least-squares method , 1999, IEEE Trans. Image Process..

[2]  Wei Xu,et al.  Phase-unwrapping of SAR interferogram with multi-frequency or multi-baseline , 1994, Proceedings of IGARSS '94 - 1994 IEEE International Geoscience and Remote Sensing Symposium.

[3]  R. Bamler,et al.  Synthetic aperture radar interferometry , 1998 .

[4]  Louis A. Romero,et al.  Minimum Lp-norm two-dimensional phase unwrapping , 1996 .