Novel phase-locked loops with enhanced locking capabilities

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 01 Mar 2001Publisher:IEEEJournal:Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301)

Authors: Shahram M. Shahruz;

doi: 10.1109/acc.2002.1024569 , 10.1006/jsvi.2000.3244

Novel phase-locked loops with enhanced locking capabilities

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Abstract

In the paper, a novel phase-locked loop (PLL) is introduced. The proposed PLL, denoted by NPLL, is similar to the standard PLL except that it incorporates a nonlinear element and a low pass filter in its loop. The NPLL outperforms the standard PLL: (i) it has a large acquisition range, i.e., it can achieve locking in situations where the standard PLL cannot; (ii) it achieves locking much faster than the PLL. The superior performance of the NPLL is due to the nonlinear element and the low pass filter added to the loop.

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