-
sdr.LoopFilter(noise_bandwidth: float, damping_factor: float, K0: float =
1.0, Kp: float =1.0) Creates a 2nd order, proportional-plus-integrator (PPI) loop filter.
- Parameters:¶
- noise_bandwidth: float¶
The normalized noise bandwidth \(B_n T\) of the loop filter, where \(B_n\) is the noise bandwidth in Hz and \(T\) is the sampling period in seconds.
- damping_factor: float¶
The damping factor of the loop filter. A damping factor of 1 is critically damped, less than 1 is underdamped, and greater than 1 is overdamped.
- K0: float =
1.0¶ The NCO gain.
- Kp: float =
1.0¶ The gain of the phase error detector (PED) or time error detector (TED).
Examples¶
See the Phase-locked loops example.