how can i get my code to produce FFT graph.
1 visualización (últimos 30 días)
Mostrar comentarios más antiguos
This is my code below but doesnt work
L = length(signal);
Y = fft(signal);
Y1 = abs(Y);
% onlys show one sided FFT so multiply by 2, divide by Fs to scale.
Py = (2*Y1(1:L/2) / Fs);
% create frequency vector to plot against
freq = Fs/L*(0:L/2-1);
% plot the figure
figure
plot(freq,Py);
title('Amplitude Spectral Density');
xlabel('Frequency Hz');
ylabel('Amplitude');
grid on;
end
1 comentario
dpb
el 29 de Jul. de 2019
Please edit code to remove superfluous linefeeds and then select and use the "Code" button to format it...
Respuestas (1)
Vimal Rathod
el 1 de Ag. de 2019
The code which you have given works perfectly fine, I suspect that you are not passing an appropriate signal to the fft function.
For more information refer to the link:
0 comentarios
Ver también
Categorías
Más información sobre Discrete Fourier and Cosine Transforms en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!