To know the type(IIR or FIR) of Bandpass filter available on file exhchnage

Hello,

Can someone help me in knowing the type of filter available Bandpassfilter I want to know the type of it. Butterworth IIR or FIR filter?

Thankyou.

Answer 1

[Star Strider]

See the documentation for the Signal Processing Toolbox function designfilt, partucularly the ‘Examples’ section ‘Bandpass IIR Filter’. (The example looks like a Butterworth response, but it doesn’t say.) You can also start with buttord, then butter if you want a bit more control over the filter design.

If you don’t have access to the Signal Processing Toolbox, another site I’ve recommended in the past is Interactive Filter Design from the University of York (U.K.).