fftcoeffs

Frequency-domain coefficients

Syntax

c = fftcoeffs(hd)

Description

c = fftcoeffs(hd) return the frequency-domain coefficients used when filtering with the dfilt.fftfir object. c contains the coefficients

Examples

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This example demonstrates returning the FFT coefficients from the discrete-time filter hd.

b = [0.05 0.9 0.05];
len = 50;
hd = dfilt.fftfir(b,len);
c=fftcoeffs(hd);

Plot the impulse response of the coefficients.

impz(c);

Introduced in R2011a