Notice of Retraction: A Method of Weak Signal Detection Based on Duffing Oscillator

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.

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Weak signal detection method based on Duffing oscillator

Kybernetes ◽

10.1108/03684920910994015 ◽

2009 ◽

Vol 38 (10) ◽

pp. 1662-1668 ◽

Cited By ~ 17

Author(s):

Junguo Wang ◽

Jianzhong Zhou ◽

Bing Peng

Keyword(s):

Signal Detection ◽

Detection Method ◽

Duffing Oscillator ◽

Weak Signal ◽

Weak Signal Detection

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A new method of weak signal detection using Duffing oscillator and its simulation research

Acta Physica Sinica ◽

10.7498/aps.57.2053 ◽

2008 ◽

Vol 57 (4) ◽

pp. 2053

Author(s):

Wang Yong-Sheng ◽

Jiang Wen-Zhi ◽

Zhao Jian-Jun ◽

Fan Hong-Da

Keyword(s):

Signal Detection ◽

Duffing Oscillator ◽

New Method ◽

Weak Signal ◽

Weak Signal Detection ◽

Simulation Research

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Blind angle elimination method in weak signal detection with Duffing oscillator and construction of detection statistics

Acta Physica Sinica ◽

10.7498/aps.64.060503 ◽

2015 ◽

Vol 64 (6) ◽

pp. 060503

Author(s):

Niu De-Zhi ◽

Chen Chang-Xing ◽

Ban Fei ◽

Xu Hao-Xiang ◽

Li Yong-Bin ◽

...

Keyword(s):

Signal Detection ◽

Duffing Oscillator ◽

Weak Signal ◽

Weak Signal Detection ◽

Elimination Method

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A Method for Weak Multi-Frequency Signal Feature Extraction Based on Chaotic Duffing Oscillator

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.568-570.155 ◽

2014 ◽

Vol 568-570 ◽

pp. 155-161

Author(s):

Heng Zhi Lu ◽

Zhi Hui Lai ◽

Tai Hu Wu

Keyword(s):

Signal Detection ◽

Initial Phase ◽

Detection Method ◽

Duffing Oscillator ◽

Frequency Characteristics ◽

Weak Signal ◽

Weak Signal Detection ◽

Frequency Signal ◽

Preprocessing Method ◽

Novel Method

In this paper, we study the scale-transformation weak signal detection method based on chaotic Duffing oscillator. Based on this, the frequency characteristics of the weak single-frequency signal with arbitrary frequency and initial phase can be extracted. Furthermore, we propose a signal frequency interception preprocessing method for analyzing weak multi-frequency signal. After combing the preprocessing method with the weak signal detection method based on chaotic Duffing oscillator, we further propose a novel detection method for weak multi-frequency signal. Based on this novel method, we can extract the frequency characteristics and initial phase characteristics of the weak multi-frequency signal. In this research, we also study the automatic detection of unknown multi-frequency signal. According to the numerical simulation, the novel method we propose in this paper is helpful to extract the frequency parameters and initial phase information of each signal component of the weak multi-frequency signal.

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Weak photoacoustic signal detection based on the differential duffing oscillator

International Journal of Modern Physics B ◽

10.1142/s0217979218501035 ◽

2018 ◽

Vol 32 (09) ◽

pp. 1850103 ◽

Cited By ~ 4

Author(s):

Chenjing Li ◽

Xuemei Xu ◽

Yipeng Ding ◽

Linzi Yin ◽

Beibei Dou

Keyword(s):

Signal Detection ◽

Photoacoustic Spectroscopy ◽

Detection System ◽

Signal To Noise Ratio ◽

Duffing Oscillator ◽

Threshold Value ◽

Photoacoustic Signal ◽

Weak Signal ◽

Weak Signal Detection ◽

First Time

In view of photoacoustic spectroscopy theory, the relationship between weak photoacoustic signal and gas concentration is described. The studies, on the principle of Duffing oscillator for identifying state transition as well as determining the threshold value, have proven the feasibility of applying the Duffing oscillator in weak signal detection. An improved differential Duffing oscillator is proposed to identify weak signals with any frequency and ameliorate the signal-to-noise ratio. The analytical methods and numerical experiments of the novel model are introduced in detail to confirm its superiority. Then the signal detection system of weak photoacoustic based on differential Duffing oscillator is constructed, it is the first time that the weak signal detection method with differential Duffing oscillator is applied triumphantly in photoacoustic spectroscopy gas monitoring technology.

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