MATLAB Answers

How to search for peaks in a signal?

9 views (last 30 days)
Florentino Ruiz
Florentino Ruiz on 29 Mar 2011
I made some measurements of vibration and I have applied the FFT to view the signal spectrum, I want to make a "peak search" so that putting a condition, the program throws me values ??greater than the setpoint. For example my frequency range from 0 Hz to 1 kHz and amplitude of the spectrum ranges from 0 to 5 mm / s, I want to know how many peaks are between 1.12 mm / s and 2.3 mm / s, and at what frequencies correspond these values???

  0 Comments

Sign in to comment.

Answers (1)

jiro
jiro on 29 Mar 2011
Try using findpeaks from the Signal Processing Toolbox. You can specify minimum peak height, and after getting the results, you can throw away the peaks that exceed your upper bound.

  0 Comments

Sign in to comment.

Community Treasure Hunt

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

Start Hunting!

Translated by