The search functionality is under construction.

IEICE TRANSACTIONS on Fundamentals

Analytic Structure of Phase–Locked Loops in Complex Time

Hisa–Aki TANAKA, Toshiya MATSUDA, Shin'ichi OISHI, Kazuo HORIUCHI

  • Full Text Views

    0

  • Cite this

Summary :

The analytic structure of the governing equation for a 2nd order Phase–Locked Loops (PLL) is studied in the complex time plane. By a local reduction of the PLL equation to the Ricatti equation, the PLL equation is analytically shown to have singularities which form a fractal structure in the complex time plane. Such a fractal structure of complex time singularities is known to be characteristic for nonintegrable, especially chaotic systems. On the other hand, a direct numerical detection of the complex time singularities is performed to verify the fractal structure. The numerical results show the reality of complex time singularities and the fractal structure of singularities on a curve.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E77-A No.11 pp.1777-1782
Publication Date
1994/11/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section on Nonlinear Theory and Its Applications)
Category
Analysis of Phase Locked Loops

Authors

Keyword