Paper Title:
Variance Based Identification of Phase Transition in Duffing Oscillator for Weak Signal Detection
  Abstract

This paper studies the detection of weak signal detection using a Duffing Oscillator, which is sensitive to periodic signals but insensitive to noises. The system transits from chaotic to great periodic motion when coupled to the weak periodic signal to be detected. To efficiently determine the phase transition, a novel numerical criterion is proposed based on the sharp increase of variance when phase change happens. Simulation results verified the effectiveness of this method.

  Info
Periodical
Chapter
Chapter 1: Mechanic Manufacturing System and Automation
Edited by
Zhixiang Hou
Pages
354-358
DOI
10.4028/www.scientific.net/AMM.128-129.354
Citation
Y. Chang, C. W. Li, Y. Hao, "Variance Based Identification of Phase Transition in Duffing Oscillator for Weak Signal Detection", Applied Mechanics and Materials, Vols. 128-129, pp. 354-358, 2012
Online since
October 2011
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