Returns the frequency response $H(\omega )$ of the FIR filter on a logarithmic frequency axis.

Parameters:¶

sample_rate: float = 1.0¶

The sample rate $f_s$ of the filter in samples/s.

N: int = 1024¶

The number of samples in the frequency response.

decades: int = 4¶

The number of frequency decades to plot.

Returns:¶

• The frequencies $f$ from $0$ to $f_s/2$ in Hz. The frequencies are logarithmically-spaced.

• The frequency response of the IIR filter $H(\omega )$.

Examples¶

See the FIR filters example.