Periodic & Non-Periodic Signals
Explanation
The first signal is a triangular wave which has period of 10 seconds. The second signal is a bunch of noises.
Matlab Code
t = -10:0.0001:10;
t1 = -10:0.0001:-5.0001;
y1 = t1 + 7.5;
t2 = -5:0.0001:-0.0001;
y2 = -t2-2.5;
t3 = 0:0.0001:4.9999;
y3 = t3-2.5;
t4 = 5:0.0001:10;
y4 = -t4 + 7.5;
y = [y1 y2 y3 y4];
subplot(2,1,1);
plot(t,y);
title('Periodic Signal');
xlabel('time (s)');
ylabel('magnitude');
subplot(2,1,2);
tp = -10:0.2:9.8;
c = randint(1,100,[1,33]);
plot(tp,c);
title('Non-periodic Signal');
xlabel('time (s)');
ylabel('magnitude');
