Simulation of a discrete PLL with variable parameters

1 March 1979

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IEEE

Vol. 67 (3) , 440-442
https://doi.org/10.1109/proc.1979.11266

Abstract

The discrete phase lock loop (DPLL) proposed by G. S. Gill and S. C. Gupta [1] is simulated with a programmable calculator (TI-58). Many interesting properties of its behavior are easily shown such as the pulling-up time, the effects of varying the coefficients of the filter, and the effect of phase and frequency steps on the output. If the constant K1of the filter is initially made high, and its value decreases with time, it is possible to obtain a DPLL with large pull-in range and which is very insensitive to input noise.

Keywords

PHASE LOCKED LOOPS
NONLINEAR EQUATIONS
VECTORS
UNCERTAINTY
COMMUNICATION SYSTEM CONTROL
LINEAR SYSTEMS
CONTROL SYSTEMS
DIFFERENTIAL EQUATIONS
STABILITY
NONLINEAR SYSTEMS

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