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Interference Cancellation in Two-Channel Nuclear Quadrupole Resonance Measurements

Piatti, Tommaso; Lei, Shiwen LU ; Barras, Jamie and Jakobsson, Andreas LU (2017) In 42nd IEEE International Conference on Acoustics, Speech and Signal Processing p.3351-3355
Abstract (Swedish)
Given its high specificity, the use of nuclear quadrupole resonance (NQR) spectroscopy allows for a reliable identification and quantification of substances containing quadrupolar nuclei, such as the 14N nucleus prevalent in many explosives, medicines, and narcotics. Regrettably, the measured signals are typically weak and suffers from interference signals often being several orders of magnitude stronger than the signal of interest. In this work, we propose a two-channel setup allowing for interference cancellation in applications such as demining. The proposed techniques forms an estimate of the interference using the secondary channel, and then removes it from the primary channel. The improved performance of the resulting detector is... (More)
Given its high specificity, the use of nuclear quadrupole resonance (NQR) spectroscopy allows for a reliable identification and quantification of substances containing quadrupolar nuclei, such as the 14N nucleus prevalent in many explosives, medicines, and narcotics. Regrettably, the measured signals are typically weak and suffers from interference signals often being several orders of magnitude stronger than the signal of interest. In this work, we propose a two-channel setup allowing for interference cancellation in applications such as demining. The proposed techniques forms an estimate of the interference using the secondary channel, and then removes it from the primary channel. The improved performance of the resulting detector is illustrated using real measurements of NaNO2. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
42nd IEEE International Conference on Acoustics, Speech and Signal Processing
pages
3351 - 3355
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85023766805
ISBN
978-1-5090-4117-6
DOI
10.1109/ICASSP.2017.7952777
language
Swedish
LU publication?
yes
id
e79c07b7-f374-4ecf-a10f-f0a2ef778e6c
date added to LUP
2017-02-14 10:30:28
date last changed
2018-01-07 11:49:35
@inproceedings{e79c07b7-f374-4ecf-a10f-f0a2ef778e6c,
  abstract     = {Given its high specificity, the use of nuclear quadrupole resonance (NQR) spectroscopy allows for a reliable identification and quantification of substances containing quadrupolar nuclei, such as the 14N nucleus prevalent in many explosives, medicines, and narcotics. Regrettably, the measured signals are typically weak and suffers from interference signals often being several orders of magnitude stronger than the signal of interest. In this work, we propose a two-channel setup allowing for interference cancellation in applications such as demining. The proposed techniques forms an estimate of the interference using the secondary channel, and then removes it from the primary channel. The improved performance of the resulting detector is illustrated using real measurements of NaNO2.},
  author       = {Piatti, Tommaso and Lei, Shiwen and Barras, Jamie and Jakobsson, Andreas},
  booktitle    = {42nd IEEE International Conference on Acoustics, Speech and Signal Processing},
  isbn         = {978-1-5090-4117-6 },
  language     = {swe},
  month        = {03},
  pages        = {3351--3355},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {Interference Cancellation in Two-Channel Nuclear Quadrupole Resonance Measurements},
  url          = {http://dx.doi.org/10.1109/ICASSP.2017.7952777},
  year         = {2017},
}