MATLAB Answers

Change the frequency of an array

5 views (last 30 days)
farzad
farzad on 27 Nov 2020
Commented: farzad on 28 Nov 2020
Hi All
I have an array (time) which will be combined with another and will create a signal. before I do the combination, I want to define an input parameter, that will be the frequency of this time array. so if the time array is 30 seconds and has a frequency of 100 Hz, I want to give the parameter freq=200Hz and arrange the array members in order that the time array becomes 15 seconds.
how would I do this

  0 Comments

Sign in to comment.

Answers (1)

Sulaymon Eshkabilov
Sulaymon Eshkabilov on 27 Nov 2020
According to you exercise statement, this one works ok.
f = input('Enter time frequency value: ');
t0=0; dt = 1/f; tend = 3000/f;
t = t0:dt:tend;

  2 Comments

farzad
farzad on 27 Nov 2020
thank you ,well the thing is , I know the length of the original array, and only by changing the frequency, I need to form it without knowing the end value of the new time array
farzad
farzad on 28 Nov 2020
this does not work always : please see the next question
if I drop every one element and double the frequency with respect to the original , it does not work

Sign in to comment.

Community Treasure Hunt

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

Start Hunting!