The spectrum of chaos signal based on Wigner distribution

Xiaodan Guo; Nian Fang; Zhaoming Huang

doi:10.1117/12.745286

19 November 2007 The spectrum of chaos signal based on Wigner distribution

Xiaodan Guo, Nian Fang, Zhaoming Huang

Proceedings Volume 6782, Optoelectronic Materials and Devices II; 67822Q (2007) https://doi.org/10.1117/12.745286
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

Abstract

An improved method of distinguishing chaotic signal based on Wigner distribution (WD) is presented. Except for the width of spectrum, the peak values speciality of time-frequency in 3-dimensional figure is employed to distinguish chaotic signal. The method is verified by Lorenz system. The Wigner distribution of the chaotic signal is compared with that of the gauss noise, and the result dedicated that the spectrums of them can be distinguished. The Wigner distribution is used to dispose the chaotic signal of the fiber ring laser base on Semiconductor Optical Amplifier (SOA) too, and the result is consistent with that of Lorenz system. In the conclusion, 3-dimensional WD distribution could more accurately show chaos spectrum characteristic and could be an effective method for distinguishing the chaos and other signals.

Citation Download Citation

Xiaodan Guo, Nian Fang, and Zhaoming Huang "The spectrum of chaos signal based on Wigner distribution", Proc. SPIE 6782, Optoelectronic Materials and Devices II, 67822Q (19 November 2007); https://doi.org/10.1117/12.745286

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