Effacer les filtres
Effacer les filtres

How to generate a periodic customized waveform?

7 vues (au cours des 30 derniers jours)
Jay Vaidya
Jay Vaidya le 6 Août 2021
Modifié(e) : Yazan le 7 Août 2021
I want to generate waveforms as shown in the image below and then tweak them to modify the fall time constant of the signal. However, MATLAB doesn't have a customized waveform generator I think. Can I make this waveform in MATLAB? Thanks in advance!

Réponse acceptée

Yazan
Yazan le 6 Août 2021
Modifié(e) : Yazan le 7 Août 2021
This simple function can compute the signal you need. Use lambda to control the decay and see the other parameters.
function x = mySignal(T1, T2, A, lambda, np)
if nargin==0
T1 = 10; T2 = 30; A = 5; lambda = 0.25; np = 5; % np is number of periods
end
t1 = 0:T1-1; t2 = (T1:T2);
x1 = A/(T1-0).*t1;
x2 = A.*exp(-lambda.*(t2-T1));
xx = [x1(:); x2(:)];
x = repmat(xx, [np, 1]);
t = 0:length(x)-1;
figure, plot(t, x), grid minor
ax = gca;
ax.XTick = [0, T1, T2];
ax.XTickLabel = {'0', sprintf('T1=%g', T1), sprintf('T2=%g', T2)};
ax.YTick = [0, A];
ax.YTickLabel = {'0', sprintf('A=%g', A)};
title({'Composite signal', 'Control exponential decay by $\lambda$'}, 'interpreter','latex')
end

Plus de réponses (0)

Catégories

En savoir plus sur Signal Processing Toolbox dans Help Center et File Exchange

Tags

Produits


Version

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by