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EXPO 2011 Signal Processing Workflow Demo Files

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MATLAB EXPO 2011 Signal Processing Workflow Demo Files

design_notch_fcn.m
function Hd = design_notch_fcn(Fnotch,BW,Apass)
%DESIGN_NOTCH_FCN Returns a discrete-time filter object.

%
% MATLAB Code
% MATLAB(R) 7.12  DSP System Toolbox 8.0 ɂĐ܂B
%
% : 06-Jul-2011 13:45:48
%

% IIR Notching filter designed using the IIRNOTCH function.

% All frequency values are in Hz.
Fs = 22050;  % Sampling Frequency

% Fnotch = 2842.4;  % Notch Frequency
% BW     = 50;      % Bandwidth
% Apass  = 10;      % Bandwidth Attenuation

[b, a] = iirnotch(Fnotch/(Fs/2), BW/(Fs/2), Apass);
Hd     = dfilt.df2(b, a);

% [EOF]

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