Title :
Lyapunov redesign of classical digital phase-lock loops
Author :
Abramovitch, Daniel
Author_Institution :
Commun. & Opt. Res. Lab., Aglient Lab., Palo Alto, CA, USA
Abstract :
The author (1990) has previously established that Lyapunov redesign is effective in designing an analog phase-locked loop for which the nonlinear model (in the signal phase space) is guaranteed to be stable. This paper extends that concept to what are commonly called classical digital phase-locked loops. These loops, which are very common in high speed digital communications systems, use digital phase detectors but analog filters and VCOs.
Keywords :
Lyapunov methods; closed loop systems; digital phase locked loops; network synthesis; phase detectors; voltage-controlled oscillators; Lyapunov redesign; PLL; VCO; analog filters; analog phase locked loop; closed-loop system; digital phase detectors; digital phase locked loops; high speed digital communication systems; nonlinear model; nonlinear system; signal phase space; Circuits; Clocks; Digital communication; Digital filters; Logic; Phase detection; Phase frequency detector; Phase locked loops; Stability analysis; Voltage-controlled oscillators;
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
Print_ISBN :
0-7803-7896-2
DOI :
10.1109/ACC.2003.1243434
