get_notch_Q.m

%
% This file is part of pichim's controller tuning framework.
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% and/or modify this software under the terms of the GNU General
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% See the GNU General Public License for more details.
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%%
function Q = get_notch_Q(centerFreq, cutoffFreq)
% get notch filter Q given center frequency (f0) and lower cutoff frequency (f1)
% Q = f0 / (f2 - f1) ; f2 = f0^2 / f1
    Q = centerFreq * cutoffFreq / (centerFreq * centerFreq - cutoffFreq * cutoffFreq);

end