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Member of the filter implementation class.

Syntax

y = fftfilt(f, x)

y = fftfilt(f, x, n)

Description

Uses FFT-filter coefficients to filter a signal. fftfilt 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.

Examples

Inputs

Name	Description
f	Specifies the FFT-filter coefficients. f is a vector or matrix.
x	Specifies the signal you want to filter. x is a real or complex vector or matrix.
n	Specifies the minimum number of points in the FFT. n is a positive integer.

Outputs

Name	Description
y	Returns the filtered signal. y is a real or complex vector or matrix.

Examples

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

Related Topics

fft
fft2
filter