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In circular synthetic aperture radar (CSAR) mode, a 2-D image contains 3-D spatial information about the imaged targets. This letter describes an attempt to estimate the height profiles of power lines with slightly varying heights based on 2-D CSAR imagery. First, according to the characteristics of a 2-D CSAR image of a power line with constant height, an approximate formula is deduced to calculate...
ISAR imaging is performed on a 3 bladed rotating target with a low cost UWB Radar. Design constraints and radar parameters are referenced. A difference scheme is introduced to reduce the scattering from indoor clutter. Range-Doppler images are generated and compared between raw data processing and difference data processing. Time-varying target characteristics can be clearly observed from the resulting...
This paper analyses ambiguity suppression caused by multiple-input multiple-output (MIMO) SAR azimuth nonuniform samplings. Two methods are analyzed: azimuth spectrum reconstruction algorithm and minimum mean square error (MMSE) imaging algorithm. The azimuth spectrum reconstruction algorithm can reconstruct the scene fine resolution, while the nonideal orthogonality of multi-channel encoding waveforms...
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