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Exploiting temperature dependency in the detection of NQR signals
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering.
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering.
Department of Chemistry, King’s College, London.
Department of Chemistry, King’s College, London.
2006 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 54, no 5, 1610-1616 p.Article in journal (Refereed) Published
Abstract [en]

Nuclear quadrupole resonance (NQR) offers an unequivocal method of detecting and identifying land mines. Unfortunately, the practical use of NQR is restricted by the low signal-to-noise ratio (SNR), and the means to improve the SNR are vital to enable a rapid, reliable, and convenient system. In this paper, an approximate maximum-likelihood detector (AML) is developed, exploiting the temperature dependency of the NQR frequencies as a way to enhance the SNR. Numerical evaluation using both simulated and real NQR data indicate a significant gain in probability of accurate detection as compared with the current state-of-the-art approach.

Place, publisher, year, edition, pages
2006. Vol. 54, no 5, 1610-1616 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kau:diva-19149DOI: 10.1109/TSP.2006.871969OAI: oai:DiVA.org:kau-19149DiVA: diva2:592792
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2014-02-11Bibliographically approved

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Jakobsson, AndreasMossberg, Magnus
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