Exploiting temperature dependency in the detection of NQR signals [land mine detection applications]

Author

Jakobsson, Andreas ; Mossberg, Magnus ; Rowe, Michael D. ; Sinith, J.A.S.

Author_Institution

Dept. of Electr. Eng., Karlstad Univ., Sweden

Volume

4

fYear

2005

fDate

18-23 March 2005

Abstract

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 means to improve the SNR are vital to enable a rapid, reliable and convenient system. In this paper, we develop a non-linear least squares detector exploiting the temperature dependency of the NQR frequencies as a way to enhance the SNR. Numerical simulations on both synthetic and real measured data indicate an excellent performance of the method.

Keywords

landmine detection; least squares approximations; nuclear quadrupole resonance; signal detection; NQR signal detection; NQR signal temperature dependency; SNR enhancement; explosives detection; land mine detection; land mine identification; nonlinear least squares detector; nuclear quadrupole resonance; Detectors; Frequency; Land surface temperature; Landmine detection; Least squares methods; Numerical simulation; Resonance; Signal detection; Signal to noise ratio; Temperature dependence;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8874-7

Type

conf

DOI

10.1109/ICASSP.2005.1416093

Filename

1416093