www.gusucode.com > dsp 案例源码程序 matlab代码 > dsp/DetermineTheTransferFunctionOfNotchPeakFilterExample.m

    %% Determine the Transfer Function of Notch Peak Filter
% Create a |dsp.NotchPeakFilter| System object(TM). Obtain the 
% coefficients of the transfer function corresponding to the notch and peak 
% filters.
notchpeak = dsp.NotchPeakFilter;
[Bnotch,Anotch,Bpeak,Apeak] = tf(notchpeak);

%%
% |Bnotch| and |Anotch| are the vector of numerator and denominator 
% coefficients for the equivalent transfer function corresponding to the
% notch filter. |Bpeak| and |Apeak| are the vector of numerator and denominator 
% coefficients for the equivalent transfer function corresponding to the
% peak filter.