Nonlinear characteristics of high amplitude focusing using time reversal in a reverberation chamber

BD Patchett, BE Anderson - The Journal of the Acoustical Society of …, 2022‏ - pubs.aip.org
Time reversal (TR) signal processing is an effective tool to exploit a reverberant environment
for the intentional focusing of airborne, audible sound. A previous room acoustics TR study …

Localization and classification of scattered nonlinear ultrasonic signatures in bio-mechanical media using time reversal approach

Z Dvořáková, S Dos Santos, V Kůs… - The Journal of the …, 2023‏ - pubs.aip.org
This paper deals with the time reversal approach along with signal classification using ϕ-
divergences in biomedical applications for localization and statistical classification of …

Super resolution, time reversal focusing using path extending properties of scatterers

ED Golightly, BE Anderson, AD Kingsley, R Russell… - Applied Acoustics, 2023‏ - Elsevier
Time reversal is a process where a sound is recorded at a specific location, temporally
reversed, and then played back to focus at the same location as the original recording. This …

Time reversal techniques

BE Anderson, MC Remillieux, PY Le Bas… - Nonlinear ultrasonic and …, 2019‏ - Springer
Time reversal is a technique to focus wave energy to a selected point in space and time,
localize and characterize a source of wave propagation, and/or communicate information …

Time reversal focusing of high amplitude sound in a reverberation chamber

ML Willardson, BE Anderson, SM Young… - The Journal of the …, 2018‏ - pubs.aip.org
Time reversal (TR) is a signal processing technique that can be used for intentional sound
focusing. While it has been studied in room acoustics, the application of TR to produce a …

High-amplitude time reversal focusing of airborne ultrasound to generate a focused nonlinear difference frequency

CB Wallace, BE Anderson - The Journal of the Acoustical Society of …, 2021‏ - pubs.aip.org
Time reversal (TR) focusing of airborne ultrasound in a room is demonstrated. Various
methods are employed to increase the amplitude of the focus. These methods include …

[HTML][HTML] The effect of transducer directivity on time reversal focusing

BE Anderson, M Clemens… - The Journal of the …, 2017‏ - pubs.aip.org
This letter explores the effect of the directivity of a source on time reversal acoustic focusing
of energy. A single loudspeaker produces an airborne focus of sound in a reverberation …

The impact of room location on time reversal focusing amplitudes

BD Patchett, BE Anderson, AD Kingsley - The Journal of the Acoustical …, 2021‏ - pubs.aip.org
Time reversal (TR) is a signal processing technique often used to generate focusing at
selected positions within reverberant environments. This study investigates the effect of the …

Time reversal acoustics applied to rooms of various reverberation times

MH Denison, BE Anderson - The Journal of the Acoustical Society of …, 2018‏ - pubs.aip.org
Time Reversal (TR) is a technique that may be used to focus an acoustic signal at a
particular point in space. While many variables contribute to the quality of TR focusing of …

[HTML][HTML] Nonlinearity from stress corrosion cracking as a function of chloride exposure time using the time reversed elastic nonlinearity diagnostic

SM Young, BE Anderson, SM Hogg… - The Journal of the …, 2019‏ - pubs.aip.org
The Time Reversed Elastic Nonlinearity Diagnostic (TREND) has a long history of
successful nondestructive detection of cracks in solids using nonlinear indicators. Recent …