Question

dis creo te The gnal +ime x (n) .4 unz) (n-4 put Syatem with LTI +o the impulse response hn) c,6 n-2 -aln-) MATLAB the code that computes ute -padding output signal sing canluticn with &erc method b ith - padding methad no 2ero

Answer 1

clc; clear all; close all;

n1=-2:4;

n2=2:8;

n=length (n1)+length(n2)-1;

x=(0.4)^n1;

h=(0.6)^n2;

xz=[x zeros(1,n-length(x))]; %zero padding x

hz=[h zeros(1,n-length(h))]; % zero padding z

cz=ifft(fft(xz).*fft(hz)); % convolution with zero padding

c=conv(x,h); % convolution without zeros

figure (1)

subplot (2,1,1)

stem(n,cz);

title(' convolution with zero padding ');

subplot (2,1,2)

stem(n,c);

title (' convolution with out zero padding');