DETECTION AND CLASSIFICATION OF LIQUID EXPLOSIVES USING NMR

被引：6

作者：

Gudmundson, E. ^{[1
]}

Jakobsson, A. ^{[2
]}

Poplett, I. J. F. ^{[3
]}

Smith, J. A. S. ^{[3
]}

机构：

[1] Uppsala Univ, Dept Informat Technol, Box 337, SE-75105 Uppsala, Sweden

[2] Lund Univ, Dept Math Stat, SE-22100 Lund, Sweden

[3] Kings Coll London, Div Engn, London WC2R 2LS, England

来源：

2009 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS 1- 8, PROCEEDINGS | 2009年

基金：

瑞典研究理事会;

关键词：

detection of liquid explosives; classification; nuclear magnetic resonance;

D O I：

10.1109/ICASSP.2009.4960268

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this work, we present a novel method for non-invasive identification of liquids, for instance to allow for the detection of liquid explosives at airports or border controls. The approach is based on a nuclear magnetic resonance technique with an inhomogeneous magnetic field, forming estimates of the liquid's spin-spin relaxation time, T-2, and diffusion constant, D, thereby allowing for a unique classification of the liquid. The proposed detectors are evaluated using both simulated and measured data sets.

引用

页码：3053 / +

页数：2

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