We investigate an inverse source problem of the time-harmonic elastic wave equation. Some novel sampling-type numerical schemes are proposed to identify the moment tensor point sources in the Lam\'e system from near-field measurements. Rigorous theoretical justifications are provided to show that the locations and moment tensors of the elastic sources can be uniquely determined from the multi-frequency displacement data. Several numerical examples are also presented to illustrate the validity and robustness of the proposed method.

翻译：我们调查的是时间-调和弹性波等式的反源问题。我们建议采用一些新型抽样类型的数字方法,从近距离测量中确定Lam\'e系统中的时高点源。提供了严格的理论依据,以表明弹性源的位置和时高可以从多频率迁移数据中单独确定。还提出了几个数字例子,以说明拟议方法的有效性和稳健性。