BIT SYNCHRONIZERS FOR PSK AND THEIR DIGITAL IMPLEMENTATION

Abstract

Bit synchronizers play an important role in phase-shift-keyed systems (as well as noncoherent systems) with the trend towards all-digital versions. This paper discusses the various types of bit synchronizers and the additional functions and subsystems that must be used to make them efficient at low values of SNR and bit-transition density. It also discusses the digitization of bit synchronizers, along with the performance measures commonly used.