Synthetic aperture radar (SAR) tomography is a 3-D imaging modality that is commonly tackled by spectral estimation techniques. Thus, the backscattered power along the cross-range direction can be readily obtained by computing the Fourier spectrum of a stack of multibaseline measurements. In addition, recent work has addressed the tomographic inversion under the framework of compressed sensing, thereby recovering sparse cross-range profiles from a reduced set of measurements. This paper differs from previous publications, in that it focuses on sparse expansions in the wavelet domain while working with the second-order statistics of the corresponding multibaseline measurements. In this regard, we elaborate on the conditions under which this perspective is applicable to forested areas and discuss the possibility of optimizing the acquisition geometry. Finally, we compare this approach with traditional nonparametric ones and validate it by using fully polarimetric L-band data acquired by the Experimental SAR (E-SAR) sensor of the German Aerospace Center (DLR).
Wavelet-Based Compressed Sensing for SAR Tomography of Forested Areas
IEEE Transactions on Geoscience and Remote Sensing ; 51 , 12 ; 5283-5295
2013-12-01
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Wavelet-Based Compressed Sensing for SAR Tomography of Forested Areas
Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2012
|A Data-Adaptive Compressed Sensing Approach to Polarimetric SAR Tomography of Forested Areas
Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2013
|Wavelet-Based Compressed Sensing for Polarimetric SAR Tomography
Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2013
|Wavelet-Based Compressed Sensing for Polarimetric SAR Tomography
British Library Conference Proceedings | 2013
|