Counting Consecutive Threshold Crossings in a Signal (Counting Oscillations)

9 visualizzazioni (ultimi 30 giorni)
I have an oscillating signal in a SIMULINK model and I want to count the number of times it crosses a certain threshold level (positive and negative) consecutively. How can I do that? There is a built-in block for Zero-Crossings Counter but what can I use to solve my problem?

Risposte (1)

Allen il 10 Ott 2022
You can accomplish a check against a threshold using the following code or a slight variation to meet other needs.
% Generating a random signal for demonstration purposes
S = 40*rand([1,100])-20;
% Define your threshold
threshold = 0;
count = nnz(diff(sign(S-threshold)));
  1 Commento
Fawad Farooq Ashraf
Fawad Farooq Ashraf il 11 Ott 2022
Thank you for your reply. But unfortunately, I have to do this in real-time for a moving signal (i.e., I'll just have single values of the signal at each time step) and I have to use SIMULINK blocks for the implementation.

Accedi per commentare.




Community Treasure Hunt

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

Start Hunting!

Translated by