lp2bp_zpk(z, p, k, wo=1.0, bw=1.0)
Return an analog band-pass filter with center frequency :None:None:`wo` and bandwidth :None:None:`bw` from an analog low-pass filter prototype with unity cutoff frequency, using zeros, poles, and gain ('zpk') representation.
This is derived from the s-plane substitution
$$s \rightarrow \frac{s^2 + {\omega_0}^2}{s \cdot \mathrm{BW}}$$This is the "wideband" transformation, producing a passband with geometric (log frequency) symmetry about :None:None:`wo`.
Zeros of the analog filter transfer function.
Poles of the analog filter transfer function.
System gain of the analog filter transfer function.
Desired passband center, as angular frequency (e.g., rad/s). Defaults to no change.
Desired passband width, as angular frequency (e.g., rad/s). Defaults to 1.
Zeros of the transformed band-pass filter transfer function.
Poles of the transformed band-pass filter transfer function.
System gain of the transformed band-pass filter.
Transform a lowpass filter prototype to a bandpass filter.
The following pages refer to to this document either explicitly or contain code examples using this.
scipy.signal._filter_design.lp2hp_zpk
scipy.signal._filter_design.lp2bs_zpk
scipy.signal._filter_design.lp2bp
scipy.signal._filter_design.bilinear_zpk
scipy.signal._filter_design.lp2lp_zpk
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