Why does "lowpass" give a static error when using the IIR option?
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Why does a static error appear between input and output when using the following command?
lowpass(ones(1,1000),500,5000,'ImpulseResponse','iir')
By the way, the static error problem can be solved by making the following correction in "lowpass.m" at line 138:
Tw = opts.TwPercentage * WpassNormalized;
instead of:
Tw = opts.TwPercentage * (1 - WpassNormalized);
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