Improving amplitude-modulated signals by re-scaled and twice sampling vibrational resonance methods

被引：9

作者：

Jia, Pengxiang ^{[1
,2
,3
]}

Yang, Jianhua ^{[1
,2
,4
]}

Liu, Houguang ^{[1
]}

Hu, Eryi ^{[1
]}

机构：

[1] China Univ Min & Technol, Sch Mechatron Engn, Xuzhou 221116, Jiangsu, Peoples R China

[2] China Univ Min & Technol, Jiangsu Key Lab Mine Mech & Elect Equipment, Xuzhou 221116, Jiangsu, Peoples R China

[3] Tianjin Univ, Sch Mech Engn, Tianjin 300072, Peoples R China

[4] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA

来源：

PRAMANA-JOURNAL OF PHYSICS | 2018年 / 91卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Amplitude-modulated signal; aperiodic signal; vibrational resonance; re-scaled method; twice sampling method; BISTABLE STOCHASTIC RESONANCE; STEADY-STATE RESPONSES; FAULT-DIAGNOSIS; OSCILLATOR; EFFICIENCY; SYSTEM; DRIVEN; SOUNDS; TONES;

D O I：

10.1007/s12043-018-1617-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the re-scaled vibrational resonance (VR) method and the twice sampling VR method to improve the amplitude-modulated signal. Two different kinds of signals are considered. One is the amplitude-modulated harmonic signal. The other is the amplitude-modulated aperiodic binary signal. Both the VR methods have an excellent effect on the signal improvement. For the re-scaled VR method, the scale parameter is the key factor to determine the resonance output. For the twice sampling VR method, the frequency reduced ratio or the minimal random pulse width stretched ratio is the crucial factor. By choosing appropriate key factors, the output can achieve the strongest resonance and lead to the optimal signal improvement.

引用

页数：11

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