Question

Butterworth and Low pass filters use _________

(a) IIR and FIR Design

(b) FIR and IIR Design

(c) FIR Design

(d) IIR Design

The question was asked in an online quiz.

This question is from Fourier Analysis and Filtering topic in section Beyond the Basics of MATLAB

Answer 1

Correct choice is (a) IIR and FIR Design

Explanation: Butterworth filters are made using the IIR Filter Design technique while Low Pass Filters are made using the FIR Design technique. Now, Butterworth low pass filters can be made using the IIR Design Technique. But the kind of low pass filters.