A New Method of Chaotic Detection for Weak Sinusoidal Signal Frequency

Fang Ling Zeng; Yan Yan Hu; Xiao Juan Geng; Shi Gui Zhang

doi:10.4028/www.scientific.net/AMR.756-759.265

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 756-759A New Method of Chaotic Detection for Weak...

A New Method of Chaotic Detection for Weak Sinusoidal Signal Frequency

Abstract:

This paper describes the intermittent chaos detection principle, combined with differential form the double Duffing oscillator difference system to the weak signal frequency detection, gives the detailed steps of the method and flow chart. Use the feature that Duffing oscillators with specific reference frequency are insensible to other frequency signals interference, only sensitive to a small part of the nearby specific frequency signal, it comes to a conclusion that small amplitude periodic motion and intermittent chaos motion may appear at the same time in the detection system, which can be used to detect complex frequency signals. At last, takes the single frequency signal and the complex frequency signal detection for simulation, the results show that, compared with traditional Duffing oscillator array method, this method not only reduces the array number, and improved frequency detection bandwidth without affecting the detection accuracy, reduces the calculation amount, so its much better than the traditional method for frequency detection.

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Periodical:

Advanced Materials Research (Volumes 756-759)

Pages:

265-270

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.756-759.265

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Online since:

September 2013

Authors:

Fang Ling Zeng, Yan Yan Hu, Xiao Juan Geng, Shi Gui Zhang

Keywords:

Complex Frequency Signal, Double Duffing Oscillators Difference System, Intermittent Chaos, Single Frequency Signal, Weak Signal Detection

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References

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