Cut a signal in Time domain

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Hamza Hamza
Hamza Hamza el 15 de Jun. de 2022
Comentada: Mathieu NOE el 17 de Jun. de 2022
Hey ,
for a project i have to generate a sinusoidal signal(force signal) and a second signal with a step function(speed signal) , then try to get the amplitude of the force signal and the phase difference to the speed signal. In which i have to cut the force signal in time domain in the same time of the step of the speed signal , and then show the amplitude and phase at that point using FFT. any Ideas ?
  3 comentarios
Hamza Hamza
Hamza Hamza el 16 de Jun. de 2022
here is the signal , a normal cosin function which i need just to take the second half of it for example (starting from 1 sec) . I will be very glad for your help.
Mathieu NOE
Mathieu NOE el 17 de Jun. de 2022
see example below
clc
clearvars
t = (0:0.01:2);
y = cos(2*pi*5*t);
% select second hal of signal , t>= 1
ind = (t>=1) ; % logical array
t2 = t(ind);
y2 = y(ind);
plot(t,y,t2,y2,'r')

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