Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2003-04-26
Physical Review E (Rapid Communications) 67, 060301(R), 2003
Physics
Condensed Matter
Disordered Systems and Neural Networks
4 pages, 2 figures
Scientific paper
10.1103/PhysRevE.67.060301
Impulses efficiently propagate into nominally dry granular beds and backscatter from buried inclusions in such beds may be potentially exploited to image shallow buried objects (SBOs). However, reliable imaging of SBOs requires ``cleaning up'' of surface vibrations, and, in addition to 3D particle dynamics simulations, a phenomenological model to parameterize the bed surface may be useful for field applications. We introduce a 1D mean-field-like toy model with two parameters that allows one to model surface vibrations, is consistent with experiments in a granular bed, and can help estimate the approximate signal transmission properties of the bed.
Krishna Mohan T. R.
Sen Surajit
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