filter_fft (MathScript RT Module Function)
Owning Class: filter implementation
Requires: MathScript RT Module
Syntax
y = filter_fft(f, x)
y = filter_fft(f, x, n)
Legacy Name: fftfilt
Description
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.
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 = filter_fft(F, X)