We study the numerical approximation of the inverse scattering problem in the two-dimensional homogeneous isotropic linear elasticity with an unknown linear load given by a square matrix. For both backscattering data and fixed-angle scattering data, we show how to obtain numerical approximations of the so-called Born approximations and propose new iterative algorithms that provide sequences of approximations to the unknown load. Numerical evidences of the convergence for not too large loads are also given.
翻译:我们研究了二维同质异位线性线性弹性和平方矩阵给出的未知线性负载的反分布问题的数字近似值。对于反向散射数据和固定角散射数据,我们展示了如何获得所谓的Born近似值的数字近近近似值,并提出了新的迭代算法,为未知负载提供近似序列。还给出了非大负载趋同的数值证据。