title: Three-dimensional time reversal communications in elastic media.
abstract: This letter presents a series of vibrational communication experiments, using time reversal, conducted on a set of cast iron pipes. Time reversal has been used to provide robust, private, and clean communications in many underwater acoustic applications. Here the use of time reversal to communicate along sections of pipes and through a wall is demonstrated to overcome the complications of dispersion and multiple scattering. These demonstrations utilize a single source transducer and a single sensor, a triaxial accelerometer, enabling multiple channels of simultaneous communication streams to a single location.
authors.affiliation: Geophysics Group (EES-17), MS D446, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USAbea@byu.edu, tju@lanl.gov, pylb@lanl.gov, tencate@lanl.gov.
authors.forename: Brian E
authors.initials: BE
authors.lastname: Anderson
authors.affiliation: Geophysics Group (EES-17), MS D446, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USAbea@byu.edu, tju@lanl.gov, pylb@lanl.gov, tencate@lanl.gov.
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Ulrich
authors.affiliation: Geophysics Group (EES-17), MS D446, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USAbea@byu.edu, tju@lanl.gov, pylb@lanl.gov, tencate@lanl.gov.
authors.forename: Pierre-Yves
authors.initials: PY
authors.lastname: Le Bas
authors.affiliation: Geophysics Group (EES-17), MS D446, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USAbea@byu.edu, tju@lanl.gov, pylb@lanl.gov, tencate@lanl.gov.
authors.forename: James A
authors.initials: JA
authors.lastname: Ten Cate