Autoregressive model with Kalman filter for estimation of physiological tremor in surgical robotic applications

Sivanagaraja Tatinati, K. C. Veluvolu, W. T. Ang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

In real-time implementation computational complexity plays vital role. This paper focuses on adaptive signal processing of physiological hand tremor for tremor cancellation in robotic devices. The physiological tremor is modelled with AR(3) process that has less computational complexity compared to other model based existing methods. In this paper, filter coefficients are updated with Kalman filter to improve the performance. The existing method AR-LMS and the improved method AR-Kalman are implemented in real-time for tremor compensation. A comparative study is conducted on the algorithms with the tremor data from microsurgeons and novice subjects. Experimental results shows that the proposed method AR with Kalman filter improves the accuracy by at least 10% in real-time compared to AR with LMS.

Original languageEnglish
Title of host publicationICCAS 2011 - 2011 11th International Conference on Control, Automation and Systems
Pages454-459
Number of pages6
StatePublished - 2011
Event2011 11th International Conference on Control, Automation and Systems, ICCAS 2011 - Gyeonggi-do, Korea, Republic of
Duration: 26 Oct 201129 Oct 2011

Publication series

NameInternational Conference on Control, Automation and Systems
ISSN (Print)1598-7833

Conference

Conference2011 11th International Conference on Control, Automation and Systems, ICCAS 2011
Country/TerritoryKorea, Republic of
CityGyeonggi-do
Period26/10/1129/10/11

Keywords

  • AR modelling
  • inertial sensors
  • Kalman filter
  • real-time estimation
  • tremor

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