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Simultaneous inversion of permittivity and conductivity employing a nonperturbative a

机译：使用非摄动a同时进行介电常数和电导率的反演

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Abstract: We present a new inversion algorithm for the simultaneous reconstruction of permittivity and conductivity that recasts the nonlinear inversion as the solution of a coupled set of linear equations. The algorithm is iterative and proceeds through the minimization of two cost functions. At the initial step, the data is matched through the reconstruction of the radiating or minimum- norm scattering currents; subsequent steps refine the nonradiating scattering currents and the material properties inside the scatterer. We give recipes for constructing basis functions for the nonradiating components of the scattering currents. The method is illustrated through the reconstruction of a large contrast square cylinder from multiple-source measurements at a single frequency.!7
机译：摘要：我们提出了一种同时重构介电常数和电导率的新反演算法，将非线性反演重铸为一组线性方程组的解。该算法是迭代的，并且通过最小化两个成本函数来进行。在初始步骤，通过重建辐射或最小范数散射电流来匹配数据。随后的步骤将细化散射体内部的非辐射散射电流和材料特性。我们给出了构建散射电流非辐射分量基本函数的方法。通过从单个频率的多源测量中重建一个大对比度方筒来说明该方法！7

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