Effacer les filtres
Effacer les filtres

Generating a noisy signal and analysis

9 vues (au cours des 30 derniers jours)
ereno simone
ereno simone le 4 Août 2012
Greetings.
I have an assignment about Signals and Systems. I am completely new to MATLAB so i need extreme help on the assignment below.
Generate a noisy signal with sinusoidal components defined at 100 Hz and 300 Hz (3rd Harmonic)
a) Calculate (slow) its time and spectral variation b) Calculate frequency resolution (deltaf) c) Design a low pass filter to remove the 3rd harmonic and check its performance.
I need the code and the graphs to do this assignment. Any help is appreciated. Thank you.
  1 commentaire
Ryan
Ryan le 5 Août 2012
What have you tried so far?

Connectez-vous pour commenter.

Réponses (1)

William
William le 5 Août 2012
try this:
x = linspace(1,1,1000);
z= randn(1,1000);
y = sin(x)+z;
plot(x,y)
just remove the "z" and you will get a normal sign wave. Add the Z and you will get a sin wave with a normal (Gaussian) distobution with mean 1 added to it.
Hope that helps

Community Treasure Hunt

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

Start Hunting!

Translated by