How to check the freqeuncy response of a boxcar filter?
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Hi, I am performing a lowpass filtering with two different filters. a) window i.e. box car b) butter filter. For butter, I know how to see the frequency response, but how to see the freqeuncy response of boxcar filter?
clear all; clc;
N = 1/fc;
h = boxcar(N); % 1/N = fc
h = h/sum(h);
%filtered_signal = filtfilt(h, 1, signal));
clc; clear all;
fs = 2000;
filtorder = 6; bw_butter =20;
[bcoeff,acoeff] = butter(filtorder,bw_butter/fs*2);
%filtered_signal = filtfilt(bcoeff,acoeff, signal));