FFT range for a signal

2 visualizaciones (últimos 30 días)
Steven
Steven el 2 de Nov. de 2015
Editada: Steven el 3 de Nov. de 2015
Hi
I have a signal from which I want to find the dominant frequency.
Does fft ignore the part which is constant (like DC)? Does that part affect the fft calculations?
Thanks in Advance

Iniciar sesión para responder a esta pregunta.

Respuesta aceptada

Walter Roberson
Walter Roberson el 2 de Nov. de 2015
fft() does not ignore the DC component. The DC component is returned as the very first vector entry of the result.

Más respuestas (0)

Categorías

Más información sobre Fourier Analysis and Filtering en Help Center y File Exchange.

Etiquetas

Productos

Community Treasure Hunt

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

Start Hunting!

Translated by