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MB-TomoSAR (multi-baseline SAR tomography) is the most promising technique to realize the real 3-D (three-dimensional) resolution of the observed target zones in future. In this paper, the state art of MB-TomoSAR is briefly reviewed firstly. Secondly, a more general MB-TomoSAR model is described, and a novel imaging approach of processing MB-TomoSAR data is proposed base on this general model. Thirdly,...
In this paper, the CSAR (circular synthetic aperture radar) technique is introduced firstly. The principle of CSAR 3D (three dimensional) imaging and the spatial wavenumber support are analyzed and the 3D resolution is discussed secondly. Secondly, Ku band fully-polarimetric CSAR human body imaging experiments are performed, and the experimental data is processed by a fast 3D backprojection algorithm,...
According to the characteristic that the bandwidth of spaceborne SAR is generally quite wide, a new method called "sub-band double carrier frequency conjugated processing" is presented in this paper. The approach can decrease the equivalent central frequency of the synthetic signal and remove the Doppler ambiguity. Consequently, Keystone transform can be used to correct the linear range...
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