Referenced Items are not available for this document.
Tremor is one of the most disabling symptoms in patients with many movement disorders including Parkinson's disease (PD) and essential tremor (ET). Neural tremor manifests itself as a quasi-periodic fluctuation of the firing rate. We describe a frequency tracking method based on the extended Kalman smoother (EKS) to estimate the instantaneous tremor frequency (ITF) exhibited in binary spike trains detected from neural recordings. Simulation results demonstrate that the EKS frequency tracker can estimate the ITF accurately, even though the signal of interest is not sinusoidal and the noise is not Gaussian. The EKS frequency tracker can obtain a normalized mean squared error (NMSE) as low as 0.1 and performs much better than the conventional approach based on the Hilbert transform
Published in:
Biomedical Engineering, IEEE Transactions on
(Volume:53
,
Issue:
8
)
Date of Publication: Aug. 2006
- Page(s):
- 1569 - 1577
- ISSN :
- 0018-9294
- INSPEC Accession Number:
- 8999528
- Digital Object Identifier :
- 10.1109/TBME.2006.877809
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 17 July 2006
- Issue Date :
- Aug. 2006
- Sponsored by :
- IEEE Engineering in Medicine and Biology Society
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