In using 'filterDesigner', go to edit-> Convert to single section (from sos).
How to convert IIR filter transposed direct form || SOS to traditional transposed direct form ||?
I have created a high pass butterworth filter in FilterDesigner tool in MATLAB. now I want to convert its structure to transposed direct form || and then do model realization. Is there a way I can realize it as traditional transposed direct form, as it existed in older versions of fdatool like R2012, and not second-order sections?
John Michell answered .
2025-11-20
% Get the filter coefficients (replace a and b with butterworth filter) b = [0.3 0.6 0.3]; a = [1 0 0.2]; % >R2011a: differet structure of filter implementations hd = dfilt.df1(b,a); hd = dfilt.df2(b,a); hd = dfilt.df1t(b,a); hd = dfilt.df2t(b,a);