Robustness of the scalar elastic imaging condition for converted waves

  title={Robustness of the scalar elastic imaging condition for converted waves},
  author={Yuting Duan and Paul C. Sava},
For elastic reverse-time migration, one constructs elastic source and receiver wavefields using a source function and multi-component data, and then applies an imaging condition to the reconstructed wavefields. A widely used imaging condition is crosscorrelation of individual wave modes separated in both wavefields, e.g., compressional (P) waves and shear (S) waves. One difficulty in elastic migration is that the PS and SP images change sign at normal incidence. We recently proposed a scalar… CONTINUE READING


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