fftfilt

Parameters

x:

real|complex numbers - vector|matrix

b:

real|complex numbers - vector|matrix

n:

positive integer

Description

y = fftfilt(b,x) filters the data in vector x with the filter described by coefficient vector b. y = fftfilt(b,x,n) uses n to determine the length of the FFT.

Examples

1) Filtering a sine wave x = sin(1:2000); b = [1 1/2]; y = fftfilt(b,x); 2) Multiple filters (1,1/3) and (1/4,1/5); x = sin(1:2000); b = [1 1/4;1/3 1/5]; y = fftfilt(b,x);

Authors

• Ayush Baid