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Conventional sparse signal recovery algorithms for three dimensional (3D) ISAR imaging realign the received 3D sparse signals into a long 1D signal to recovery. However, this method needs a large amount of computational load and occupies huge memory. In this paper, a 3D sparse signal recovery algorithm for ISAR imging is presented. Firstly, the 3D ISAR imaging model is analyzed. Then the 3D sparse...
In this paper, we propose a new version of advanced global integral and local differential AGILD modeling and inversion. In the outside of enough large 3D sphere, a annular spherical layer to be selected as absorption zone SL. We install GLLH inner cloak EM material in SL. In sphere annular SL layer, we propose GLLH Green's SL layer integral equation of Electromagnetic field for AGILD method. Making...
Numerical simulation of wave propagation in heterogeneous medium provides a fundamental tool in many inverse scattering problems. Although real data are acquired in three-dimensional (3D) world, we can still apply some approximation to simplify the model and to accelerate the computation. For example, when the data are acquired along a straight line, they are mainly sensitive to the formation in the...
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