Chaotic Synchronization in a Five-Star-Coupled Phase-Locked Loop System

Tsuruda, Hidekatsu; Shirahama, Hiroyuki; Sameshima, Takeshi; Fukushima, Kazuhiro

doi:10.1143/jpsj.72.1374

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2016

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“…Several works have been carried out to study the collective behavior like synchronization, phase-locking etc. of coupled PLLs [14][15][16][17][18]. But the oscillation quenching phenomena has yet not been studied.…”

Section: Introductionmentioning

confidence: 99%

Oscillation quenching in third order phase locked loop coupled by mean field diffusive coupling

Chakraborty

Dandapathak²,

Sarkar

2016

Chaos

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We explored analytically the oscillation quenching phenomena (amplitude death and parameter dependent inhomogeneous steady state) in a coupled third order phase locked loop (PLL) both in periodic and chaotic mode. The phase locked loops were coupled through mean field diffusive coupling. The lower and upper limits of the quenched state were identified in the parameter space of the coupled PLL using the Routh-Hurwitz technique. We further observed that the ability of convergence to the quenched state of coupled PLLs depends on the design parameters. For identical systems, both the systems converge to the homogeneous steady state, whereas for non-identical parameter values they converge to an inhomogeneous steady state. It was also observed that for identical systems, the quenched state is wider than the non-identical case. When the system parameters are so chosen that each isolated loop is chaotic in nature, we observe narrowing down of the quenched state. All these phenomena were also demonstrated through numerical simulations.

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Section: Introductionmentioning

confidence: 99%