how to convert sawtooth signal to a ramp signal

17 views (last 30 days)
I'm calculating the angle of a complex number and it is coming out as sawtooth wave of 0 to 2pi limit. I want to convert it to a continiously increasing angle. I mean i dont want the angle to go back to 0 after every period. The angle should go on forever from 0 to 2pi 3pi 4pi and so on. I'm attaching a snap to make my question clear. The blue graph is what i get and i want it to convert it to yellow graph, Also i'm using fixed descrete step discret simulink model. Thanks

Accepted Answer

DGM on 10 Apr 2021
I imagine what you want is unwrap:
t = linspace(0,3*2*pi,1000);
raw = atan2(sin(t),cos(t));
unwrapped = unwrap(raw);
  1 Comment
Shah Rukh Sohail Janjua
Shah Rukh Sohail Janjua on 10 Apr 2021
Edited: Shah Rukh Sohail Janjua on 10 Apr 2021
Thanks alot for the hint. I found an unwrap block in simulink to solve my problem.

Sign in to comment.

More Answers (0)




Community Treasure Hunt

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

Start Hunting!