Method and system for robust attenuation of mechanical resonances using a multi-rate low pass filter
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United States of America Patent
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Apr 2, 2013
Grant Date -
Feb 23, 2012
app pub date -
Aug 23, 2010
filing date -
Aug 23, 2010
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Expired
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Abstract
A system for a providing a multi-rate digital low pass filter that attenuates high frequency resonances in a control signal. The filter described by a transfer function having a phase-advanced factor (or an approximation of phase-advanced factor) and a low pass filtering function; either cancels or avoids an unstable pole in the phase advanced factor at z=−1.
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