Synthesis and evaluation of phase detectors for active bit synchronizersSelf-synchronizing digital data communication systems usually use active or phase-locked loop (PLL) bit synchronizers. The three main elements of PLL synchronizers are the phase detector, loop filter, and the voltage controlled oscillator. Of these three elements, phase detector synthesis is the main source of difficulty, particularly when the received signals are demodulated square-wave signals. A phase detector synthesis technique is reviewed that provides a physically realizable design for bit synchronizer phase detectors. The development is based upon nonlinear recursive estimation methods. The phase detector portion of the algorithm is isolated and analyzed.
Document ID
19750035375
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Mcbride, A. L. (Collins Radio Co. Dallas, Tex., United States)