The Characteristic Parameter Estimation of Low Temperature Target Weak Signal Based on VanderPol-Duffing System

DOI

10.2991/isccca.2013.139How to use a DOI?

Keywords

VanderPol-Duffing equation, the weak signal detection, amplitude extracting, frequency estimation

Abstract

The weak signal, which is usually submerged in strong noise, is very difficult to detecte for its amplitude and frequency. The dynamic properties of VanderPol-Duffing are studied in this paper. Such system can go into the chaos under certain parameters. In chaotic state the disturbance of weak periodic signals can make the system dynamic behavior change dramatically. Our research results show that the system is from period doubling state to chaotic state when the amplitude of input signal is changed. And it has a remarkable impact influence on the system dynamic performance when the input frequency is varied. The unknown frequency can be detected through counting the numbers of turning point in phase diagram. The simulation results verified that the presented method is feasible and there are a lot of theory values in the research.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yanchun Xu
AU  - Danfeng Zhao
AU  - Mi Lu
PY  - 2013/02
DA  - 2013/02
TI  - The Characteristic Parameter Estimation of Low Temperature Target Weak Signal Based on VanderPol-Duffing System
BT  - Proceedings of the 2nd International Symposium on Computer, Communication, Control and Automation (ISCCCA 2013)
PB  - Atlantis Press
SP  - 554
EP  - 558
SN  - 1951-6851
UR  - https://doi.org/10.2991/isccca.2013.139
DO  - 10.2991/isccca.2013.139
ID  - Xu2013/02
ER  -