Professor Andreas Jakobsson, Karlstad University.


Detection of explosives and narcotics using nuclear quadrupole resonance
- a signal processing perspective

Abstract: Nuclear Quadrupole Resonance (NQR) is a radio frequency
technique offering an unequivocal method of detecting the presence of
quadrupolar nuclei. Although NQR faces problems with interference and
with very low signal-to-noise ratio, the unique NQR signature offers
exceptionally high probability of detection of many forms of high
explosives, narcotics, and drugs. During the talk, we will elaborate
on the structure of the NQR signal and on how it can be exploited to
construct rapid and reliable detection algorithms for both single and
multiple sensor detectors. We will also discuss possibilities to
counter the typically significant radio frequency interference as well
as mention emerging pharmaceutical applications.

Biography: Andreas Jakobsson received his M.Sc. from Lund Institute of
Technology and his Ph.D. from Uppsala University in 1993 and 2000,
respectively. Since, he has held positions with Global IP Sound, the
Royal Institute of Technology (KTH) and King's College London. During
his Ph.D., he was a visiting researcher at Brigham Young University,
Stanford University, Katholieke Universiteit Leuven, and University of
California, San Diego. He is currently Professor of Signal Processing
at Karlstad University. He also holds an Honorary Research Fellowship
at Cardiff University. His research interests include statistical and
array signal processing, detection and estimation theory, and related
application in remote sensing, telecommunication and biomedicine.