Direct imaging for the moment tensor point sources of elastic waves
نویسندگان
چکیده
We investigate an inverse source problem of the time-harmonic elastic wave equation. Some novel sampling-type numerical schemes are proposed to identify moment tensor point sources in Lamé system from near-field measurements. Rigorous theoretical justifications provided show that locations and tensors can be uniquely determined multi-frequency displacement data. Several examples also presented illustrate validity robustness method.
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ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2022
ISSN: ['1090-2716', '0021-9991']
DOI: https://doi.org/10.1016/j.jcp.2021.110731