title: Wave separation: application for arrival time detection in ultrasonic signals.
abstract: A method to detect and accurately measure the arrival time of wave packets in ultrasonic signals using a nonlinear decomposition technique is presented. We specifically address the problem of extracting events that are not well separated in the time, space and frequency domains. Analysis of complex ultrasonic signals, even those composed of poorly separated echoes, provided exceptional estimates of the desired time of arrival, from the media under investigation.
authors.affiliation: Department of Mining and Geological Engineering, University of Arizona, United States. Electronic address: avanesians@email.arizona.edu.
authors.forename: Patrick
authors.initials: P
authors.lastname: Avanesians
authors.affiliation: Department of Mining and Geological Engineering, University of Arizona, United States. Electronic address: moe.momayez@arizona.edu.
authors.forename: Moe
authors.initials: M
authors.lastname: Momayez
keywords: Arrival time; Decomposition; Nonlinear; Time-frequency analysis; Wave separation