Wave separation: Application for arrival time detection in ultrasonic signals

被引：14

作者：

Avanesians, Patrick ^{[1
]}

Momayez, Moe ^{[1
]}

机构：

[1] Univ Arizona, Dept Min & Geol Engn, Tucson, AZ 85721 USA

来源：

ULTRASONICS | 2015年 / 55卷

关键词：

Wave separation; Nonlinear; Decomposition; Time-frequency analysis; Arrival time; FREQUENCY;

D O I：

10.1016/j.ultras.2014.08.019

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

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. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：15 / 25

页数：11

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