An esprit-based parameter estimator for spectroscopic data
2012 (English)In: 2012 IEEE Statistical Signal Processing Workshop, SSP 2012, IEEE conference proceedings, 2012, 77-80 p.Conference paper (Refereed)
The pulse spin-locking sequence is a common excitation sequence for magnetic resonance and nuclear quadrupole resonance signals, with the resulting measurement data being well modeled as a train of exponentially damped sinusoidals. In this paper, we derive an ESPRIT-based estimator for such signals, together with the corresponding Cramer-Rao lower bound. The proposed estimator is computationally efficient and only requires prior knowledge of the number of spectral lines, which is in general available in the considered applications. Numerical simulations indicate that the proposed method is close to statistically efficient, and that it offers an attractive approach for initialization of existing statistically efficient gradient or search based techniques.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2012. 77-80 p.
Damping, Data models, Estimation, Magnetic resonance, Signal processing algorithms, Signal to noise ratio, NMR, NQR
IdentifiersURN: urn:nbn:se:kth:diva-103750DOI: 10.1109/SSP.2012.6319820ISI: 000309943200020ScopusID: 2-s2.0-84868231140ISBN: 978-146730183-1OAI: oai:DiVA.org:kth-103750DiVA: diva2:561625
2012 IEEE Statistical Signal Processing Workshop, SSP 2012;Ann Arbor, MI;5 August 2012 through 8 August 2012
FunderEU, European Research Council, 228044EU, European Research Council, 261670ICT - The Next Generation
QC 201210302012-10-302012-10-192013-11-15Bibliographically approved