exp1a2

% Subplot-1: Unit sample sequence, where sample position, n= -(L+M) to (L+N).

a=-11;  %here L+M = 11 and L+N = 14
b=14;
n=a:b;
y=[zeros(1,abs(a)),ones(1,1),zeros(1,b)];
subplot(3,1,1);
stem(n,y,'LineWidth',1,'Color','g');
xlabel('Sample position');
ylabel('Amplitude');

title('Unit impluse signal');

%Subplot-2: Unit step sequence, where sample position, n= -(L+M) to (L+N).
a=-11;
b=14;
n=a:b;
y=[zeros(1,abs(a)),ones(1,1),ones(1,b)];
subplot(3,1,2);
stem(n,y,'LineWidth',1,'Color','b');
xlabel('Sample position');
ylabel('Amplitude');
title('Unit step sequence');
% Subplot-3: Unit ramp sequence, where sample position, n= 0 to (L+M+N).
n=0:16; % here L+M+N = 9+2+5 = 16;
y=n;
subplot(3,1,3);
stem(n,y,'LineWidth',1 ,'Color','m');
xlabel('Sample position');
ylabel('Amplitude');
title('Unit ramp sequence');