title: Comparison and visualization of focusing wave fields from various time reversal techniques in elastic media.
abstract: This Letter presents a series of time reversal experiments conducted on the surface of a fused silica glass block. Four different time reversal techniques are compared using three different imaging conditions. The techniques include two classical time reversal experiments: one with a pulse waveform source and one with an impulse response generated from a chirp signal. The other two techniques utilize the deconvolution, or inverse filter, signal processing methods for obtaining the signals to back propagate using a pulse waveform and an impulse response from a chirp. The max-in-time, symmetry, and energy current imaging conditions are compared.
authors: Geophysics Group (EES-17), MS D443, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 bea@lanl.gov, tju@lanl.gov, pylb@lanl.gov.
authors: Brian E
authors: BE
authors: Anderson
authors: Geophysics Group (EES-17), MS D443, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 bea@lanl.gov, tju@lanl.gov, pylb@lanl.gov.
authors: Timothy J
authors: TJ
authors: Ulrich
authors: Geophysics Group (EES-17), MS D443, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 bea@lanl.gov, tju@lanl.gov, pylb@lanl.gov.
authors: Pierre-Yves
authors: PY
authors: Le Bas