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

Wang, Jianxiong; Chu-lin, Hou

doi:10.1109/ic4e.2010.135

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…This state is called an intermittent periodic state. According to relevant research, it can be detected only when |𝛥𝑤| < 0.03𝑤 [21] . This means that for a particular system, the maximum bandwidth that can be detected theoretically is 2|𝛥𝑤| = 0.06𝑤.…”

Section: Principle Of Reverse Detection Of Weak Signals By Duffing Os...mentioning

confidence: 99%

An improved method of weak signal erasometry based on Duffing oscillator

Zhao

et al. 2023

Eighth International Conference on Electronic Technology and Information Science (ICETIS 2023)

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This paper is aimed at improving the previous experiments of duffing oscillator detecting weak signals. The influence of phase transition direction, signal phase, frequency and amplitude on Duffing system is analyzed and a new method for detecting weak signal by Duffing Oscillator is proposed. This method detects weak signals by the way of reverse detection, and calculates the threshold through Poincare section, so that the detection is more accurate.

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Section: Principle Of Reverse Detection Of Weak Signals By Duffing Os...mentioning

confidence: 99%

An improved method of weak signal erasometry based on Duffing oscillator

Zhao

et al. 2023

Eighth International Conference on Electronic Technology and Information Science (ICETIS 2023)

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show abstract

“…[4][5][6] However, the analysis of beam structure requires a certain mechanical foundation. [7][8][9][10][11] Since many people are not professional, they often study it only from the perspective of equations or circuits and cannot clearly understand its mechanism. It is necessary to transform it into a popular and concise model.…”

Section: Introductionmentioning

confidence: 99%

Model modification and feature study of Duffing oscillator

Chen

Cao

De-zhi

2021

Journal of Low Frequency Noise, Vibration and Active Control

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With the development of chaos theory, Duffing oscillator has been extensively studied in many fields, especially in electronic signal processing. As a nonlinear oscillator, Duffing oscillator is more complicated in terms of equations or circuit analysis. In order to facilitate the analysis of its characteristics, the study analyzes the circuit from the perspective of vibrational science and energetics. The classic Holmes-Duffing model is first modified to make it more popular and concise, and then the model feasibility is confirmed by a series of rigorous derivations. According to experiments, the influence of driving force amplitude, frequency, and initial value on the system is finally explained by the basic theories of physics. Through this work, people can understand the mechanisms and characteristics of Duffing oscillator more intuitively and comprehensively. It provides a new idea for the study of Duffing oscillators and more.

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The promising chaos model establishment of weak signal detection system

2013

2013 International Conference on Communications, Circuits and Systems (ICCCAS)

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In optical systems, the energies are very low if the photo source is divided through polarization beam splitters. Most of the energies are submerged in the noise and the useful signal is even weaker than the noise. Therefore we must detect the weak useful signal from the strong noise in order to better understand the radiant features of weak signals. Nowadays, there are a lot of methods to be used in chaotic system to detect weak signals among which the Duffing system is often used. In this paper we conduct researches on several typical chaotic systems and their dynamic properties are analyzed. The purpose is to find promising chaotic model to detect weak signals and compare the detection precision with that of the Duffing system. The simulation results show that the high order chaotic system can detect the weak signal amplitude and the detected signal-to-noise ratio is even lower than that of the Duffing system. It is also shown that the presented method is feasible.

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

Cited by 6 publications

References 5 publications

An improved method of weak signal erasometry based on Duffing oscillator

An improved method of weak signal erasometry based on Duffing oscillator

Model modification and feature study of Duffing oscillator

The promising chaos model establishment of weak signal detection system

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