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A highly efficient hybrid method is proposed for computing scattering by objects above a rough surface. A special treatment is designed and applied to the conventional hybrid method of the Kirchhoff approach (KA) and the method of moments (MoMs) to speed up the computation of the interaction between the objects and the rough surface. To further improve efficiency, the multilevel fast multipole algorithm...
Sampling is one of the key techniques of the model based parameter estimation (MBPE). The ill-conditioning of the data matrix caused by the high polynomial order of the fitting-model occurs frequently. How to divide the oversized fitting-model into smaller ones is discussed and an adaptive sampling scheme is proposed in this paper. Since the equispaced approach is firstly applied and there is no need...
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