Question

High Pass Filter with FIR (Window Methods)

PLEASE DESIGN THE ABOVE USING MATLAB OR SIMULINK

Answer 1

25-tap high pass filter with rectangular window and Blackman window
Matlab code
clear all;
close all;
clc;
wc=.5*pi;
N=25;
alpha=(N-1)/2;
eps=.001;
n=0:1:N-1;
hd=(sin(pi*(n-alpha+eps))-sin(wc*(n-alpha+eps)))./(pi*(n-alpha+eps));
wr=boxcar(N);
hn=hd.*wr';
w=0:.01:pi;
h=freqz(hn,1,w);
plot(w/pi,abs(h));
hold on;
wb=blackman(N);
hn=hd.*wb';
w=0:.01:pi;
h=freqz(hn,1,w);
plot(w/pi,abs(h),'_.');
grid;
xlabel('normalised frequency');
ylabel('magnitude');
hold off;