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Modeling and canceling tremor in human-machine interfaces

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2 Author(s)
C. N. Riviere ; Robotics Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA ; N. V. Thakor

Zero-phase modeling and canceling of tremor can improve precision in human-machine control applications. Past methods of tremor suppression have been hindered by feedback delays due to phase lag and by the inability to track tremor frequency over time. The weighted-frequency Fourier linear combiner (WFLC) is an adaptive noise canceller that precisely models tremor with zero phase lag. This article briefly presents the WFLC algorithm and describes its application to computer input filtering, clinical tremor quantification, and active tremor canceling for microsurgery

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IEEE Engineering in Medicine and Biology Magazine  (Volume:15 ,  Issue: 3 )