Open AccessA nonlinear hybrid method for detecting the frequency of unknown weak composite periodic signal
Author(s) -
Zhengwei Zhang,
Yangyu Fan,
Li Zeng
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.5115
Subject(s) - chaotic , detector , nonlinear system , signal (programming language) , stochastic resonance , detection theory , set (abstract data type) , frequency spectrum , physics , statistical physics , computer science , acoustics , telecommunications , spectral density , noise (video) , quantum mechanics , artificial intelligence , image (mathematics) , programming language
The odd multiple frequency phenomenon emerging in the stochastic resonance was studied, and some new theoretical conclusions was drawn. Based on these conclusions we found the reference frequency which must be set in the chaotic detector. Using the frequency selectivity of chaotic detector, the false frequency existing in the odd multiple frequency was filtered out.