# filter_fft

Version:

Uses FFT-filter coefficients to filter a signal. filter_fft works column-wise for matrices. If x and f are matrices of the same size, this function works column-wise for both x and f.

## Syntax

y = filter_fft(f, x)
y = filter_fft(f, x, n)
Legacy name: fftfilt

## f

FFT filter coefficients. f is a vector or matrix.

## x

Signal you want to filter. x is a real or complex vector or matrix.

## n

Minimum number of points in the FFT. n is a positive integer.

## y

Filtered signal. y is a real or complex vector or matrix.

F = [1, 2, 1, 7];
X = 0:0.1:1;
Y = filter_fft(F, X)

Where This Node Can Run:

Desktop OS: Windows

FPGA: This product does not support FPGA devices