Synchronization¶

Phase-locked loops¶

class sdr.NCO

Implements a numerically controlled oscillator (NCO).

class sdr.LoopFilter

Implements a 2nd order, proportional-plus-integrator (PPI) loop filter.

class sdr.ClosedLoopPLL

A class that defines the performance of a closed-loop PLL.

Phase error detectors¶

class sdr.PED

Implements a heuristic phase error detector (PED).

class sdr.MLPED(sdr.PED)

Implements a maximum-likelihood phase error detector (ML-PED).

Amplitude control loops¶

class sdr.AGC

Implements an automatic gain controller (AGC).