linear convolution of discrete time sequence

clc;
clear;

x=[9,8,7,6,5,4];
h=[1,2,3,4];


L= length(x);
M = length(h);
N = L+M-1;

X=[x,zeros(1,N-L)];
H=[h,zeros(1,N-M)];

for i=1:1:N
    Y(i)=0;
    for j=1:1:i
        Y(i)= Y(i)+H(i-j+1).*X(j);
    end
end

x;
h;
Y;

Y2=conv(x,h)

subplot(4,1,1);
stem(x);
xlabel('Elements in x');
ylabel('First graph');


subplot(4,1,2);
stem(h);
xlabel('Elements in h');
ylabel('Second graph');

subplot(4,1,3);
stem(Y);
xlabel('Elements in Y');
ylabel('Third graph');

subplot(4,1,4) 
stem(Y2)
xlabel("elements  in  Y2") 
ylabel("Fourth graph")

Answer 1

[Aniket Jadhav]

clc;
clear;

x=[9,8,7,6,5,4];
h=[1,2,3,4];


L= length(x);
M = length(h);
N = L+M-1;

X=[x,zeros(1,N-L)];
H=[h,zeros(1,N-M)];

for i=1:1:N
    Y(i)=0;
    for j=1:1:i
        Y(i)= Y(i)+H(i-j+1).*X(j);
    end
end

x;
h;
Y;

Y2=conv(x,h)

subplot(4,1,1);
stem(x);
xlabel('Elements in x');
ylabel('First graph');


subplot(4,1,2);
stem(h);
xlabel('Elements in h');
ylabel('Second graph');

subplot(4,1,3);
stem(Y);
xlabel('Elements in Y');
ylabel('Third graph');

subplot(4,1,4) 
stem(Y2)
xlabel("elements  in  Y2") 
ylabel("Fourth graph")