Affordable Access

Publisher Website

Adaptive sliding bandlimited multiple fourier linear combiner for estimation of pathological tremor

Authors
Journal
Biomedical Signal Processing and Control
1746-8094
Publisher
Elsevier
Volume
10
Identifiers
DOI: 10.1016/j.bspc.2013.10.004
Keywords
  • Pathological Tremor
  • Biomechanical Loading
  • Bmflc
  • Sliding Frequency Band
  • Zero-Phase Lag
Disciplines
  • Computer Science

Abstract

Abstract Pathological tremor is a roughly sinusoidal movement and impacts individuals’ daily living activities. Biomechanical loading is employed as a potential method for tremor suppression with the accurate estimation of amplitude and frequency of tremor signals. In this paper, a study on tremor is conducted and the characteristics of tremor signals are analyzed. An adaptive sliding Bandlimited multiple Fourier linear combiner (ASBMFLC) algorithm is proposed to estimate the different desired signals with sliding frequency band and zero-phase lag. This method incorporates digital filter, Weighted-Frequency Fourier Linear Combiner (WFLC) and Bandlimited Multiple Fourier Linear Combiner (BMFLC) with modification of fundamental frequency and limitation of frequency range. Based on the experimental tremor signals, WFLC, BMFLC and the proposed algorithm are evaluated, respectively. The experimental results show that the developed algorithm could adapt to the unknown dominant frequency for determining the interesting frequency band without prior information. Furthermore, the improved method could provide higher accurate estimation of tremor and extract the voluntary components from measured signals, compared with WFLC and BMFLC, respectively.

There are no comments yet on this publication. Be the first to share your thoughts.