Real-time estimation of pathological tremor parameters from gyroscope data

Juan A. Gallego, Eduardo Rocon, Javier O. Roa, Juan C. Moreno, José L. Pons

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

This paper presents a two stage algorithm for real-time estimation of instantaneous tremor parameters from gyroscope recordings. Gyroscopes possess the advantage of providing directly joint rotational speed, overcoming the limitations of traditional tremor recording based on accelerometers. The proposed algorithm first extracts tremor patterns from raw angular data, and afterwards estimates its instantaneous amplitude and frequency. Real-time separation of voluntary and tremorous motion relies on their different frequency contents, whereas tremor modelling is based on an adaptive LMS algorithm and a Kalman filter. Tremor parameters will be employed to drive a neuroprosthesis for tremor suppression based on biomechanical loading.

Original languageEnglish (US)
Pages (from-to)2129-2149
Number of pages21
JournalSensors
Volume10
Issue number3
DOIs
StatePublished - Mar 2010

Keywords

  • Adaptive signal processing
  • Inertial sensors
  • Kalman filter
  • MEMS gyroscope
  • Neuropros-thesis
  • Real-time estimation
  • Tremor
  • Tremor modelling
  • Voluntary movement estimation

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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