This paper solves the inverse elastic wave scattering problem using the direct sampling method. Based on the scattered field of the elastic wave, a new indicator function is introduced, and the theoretical analysis is carried out, which demonstrates the effectiveness of our method. In practice, the scattered data may contain noise, and a modified indicator function is developed; furthermore, the stability analysis is also implemented to confirm the robustness of the proposed approach. Numerical examples are provided to clarify the effectiveness and robustness of our method.
Guo et al. (2026) studied this question.
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