How to generate a periodic customized waveform?
7 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
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!
0 Kommentare
Akzeptierte Antwort
Yazan
am 6 Aug. 2021
Bearbeitet: Yazan
am 7 Aug. 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
0 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Signal Processing Toolbox finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!