Mathematics > Analysis of PDEs
[Submitted on 2 Sep 2025
]
Title: Sampling methods for the inverse cavity scattering problem of biharmonic waves
Title: 双调和波的逆腔散射问题的采样方法
Abstract: This paper addresses the inverse problem of qualitatively recovering a clamped cavity in a thin elastic plate using far-field measurements. We present a strengthened analysis of the linear sampling method by carefully examining the range of the far-field operator and employing the reciprocity relation of the biharmonic far-field pattern. In addition, we implement both the linear sampling method for reconstructing the cavity and the extended sampling method for localizing the cavity under limited-aperture data. Numerical experiments demonstrate the effectiveness and robustness of both methods.
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