Wavefield focusing can be achieved by Time-Reversal Mirrors, which involve in- and output signals that are infinite in time and waves propagating through the entire medium. Here, an alternative solution for wavefield focusing is presented. This solution is based on a new integral representation where in- and output signals are finite in time, and where the energy of the waves propagating in the layer embedding the focal point is reduced. We explore the potential of the proposed method with numerical experiments involving a 1D example and a cranium model consisting of a skull enclosing a brain.
|Title of host publication||2019 IEEE International Ultrasonics Symposium, IUS 2019|
|Number of pages||4|
|Publication status||Published - 2019|
|Event||2019 IEEE International Ultrasonics Symposium, IUS 2019 - Glasgow, United Kingdom|
Duration: 6 Oct 2019 → 9 Oct 2019
|Conference||2019 IEEE International Ultrasonics Symposium, IUS 2019|
|Period||6/10/19 → 9/10/19|