sdr.IIR.__call__(x: ArrayLike) → NDArray Filters the input signal \(x[n]\) with the IIR filter. Parameters:¶ x: ArrayLike¶The input signal \(x[n]\) with length \(L\). Returns:¶ The filtered signal \(y[n]\) with length \(L\). Examples¶ See the IIR filters example.