title: Adaptive time-reversal mirror.
abstract: The time-reversal mirror uses the received signal from a probe source to refocus the signal at the probe source location by backpropagating the time-reversed version of the received signal. In this study, an adaptive method is described to steer a null to an arbitrary position in a waveguide while maintaining a distortionless response at the probe source location. As an application, selective focusing in free space is demonstrated.
authors.affiliation: Marine Physical Laboratory, Scripps Institute of Oceanography, University of California, San Diego, La Jolla 92093-0238, USA. jskim@hanara.kmaritime.ac.kr
authors.forename: J S
authors.initials: JS
authors.lastname: Kim
authors.forename: H C
authors.initials: HC
authors.lastname: Song
authors.forename: W A
authors.initials: WA
authors.lastname: Kuperman