Imaging small three-dimensional elastic inclusions by an enhanced multiple signal classification method.

@article{Song2012ImagingST,
  title={Imaging small three-dimensional elastic inclusions by an enhanced multiple signal classification method.},
  author={Rencheng Song and Xudong Chen and Yu Zhong},
  journal={The Journal of the Acoustical Society of America},
  year={2012},
  volume={132 4},
  pages={2420-6}
}
In this paper, an enhanced multiple signal classification (MUSIC) algorithm is introduced to retrieve small three-dimensional elastic inclusions. First, the multistatic response (MSR) matrix is built by two different ways depending on considering the multiple scattering effect or not. The eigenvalue structure of the MSR matrix is analyzed to identify the degenerate case of inclusions. Second, the pseudo-spectrum function is built with an optimal test direction on each node, where a balancing… CONTINUE READING