Results 11 to 20 of about 854,084 (200)

Stochastic Resonance in an Underdamped System with Pinning Potential for Weak Signal Detection [PDF]

Sensors, 2015
Stochastic resonance (SR) has been proved to be an effective approach for weak sensor signal detection. This study presents a new weak signal detection method based on a SR in an underdamped system, which consists of a pinning potential model.
Haibin Zhang, Qingbo He, Fanrang Kong
doaj   +2 more sources

A Mixture of Experts Model for Third-Party Pipeline Intrusion Detection Using DAS [PDF]

Sensors
Distributed acoustic sensing (DAS) in pipeline safety warning systems confronts multiple challenges during technological evolution and application expansion, primarily including recognition accuracy, real-time performance, and the identification of weak ...
Shenbin Zhu, Minglei Fu, Haifeng Zhang, Hongyuan Jiao, Yanhua Zhao, Zhengxiang Wu, Haiming Wang, Bohan Song   +7 more
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Field Enhancement for the Composite MXene/Black Phosphorus-Based Metasurface

Nanomaterials, 2022
Both MXene and black phosphorus (BP), which actg as hot two-dimensional (2D) materials, have unique optical properties and important applications for nano-micro optical devices.
Yihui Zhou, Lingqiao Li, Zhihui He, Yixuan Wang, Wei Cui, Zhimin Yang, Shaojun Lu, Xiongxiong Wu, Lang Bai   +8 more
doaj   +1 more source

A New Detecting Method for Underwater Acoustic Weak Signal Based on Differential Double Coupling Oscillator

IEEE Access, 2021
For weak signal detection with known frequency, based on the double coupling Duffing oscillator method, a differential double coupling Duffing oscillator and Van der Pol-Duffing oscillator detection method is proposed.
Guohui Li, Jiuyang Cui, Hong Yang
doaj   +1 more source

Multiple poles resonances coupling with high sensitivity sensing for multiple bulging black phosphorus-based metasurface

New Journal of Physics, 2023
Herein, a multiple bulging black phosphorus (BP)-based metasurface is proposed for studying its reflection responses and sensing performances through the finite-difference time-domain simulation method. It is shown that, the reflection dips are caused by
Nengxun Yang, Yixuan Wang, Lingqiao Li, Yang Ren, Zhihui He, Wei Cui, Zhimin Yang, Shaojun Lu, Xiongxiong Wu, Lang Bai   +9 more
doaj   +1 more source

A sea clutter detection method based on LSTM error frequency domain conversion

Alexandria Engineering Journal, 2022
Weak signal detection has always been a hot spot in the signal processing field. In this paper, the chaotic and large data size characteristics of sea clutter are analyzed, the advantage of the Long and Short Term Memory network (LSTM) is taken to design
Yan Yan, Hong-yan Xing
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Minimax signal detection under weak noise assumptions [PDF]

Mathematical Methods of Statistics, 2017
20 pages, 1 Table (Final Version - To appear in: Mathematical Methods of Statistics)
Marteau, Clément, Sapatinas, Theofanis
openaire   +3 more sources

A Quantum Weak Signal Detection Method for Strengthening Target Signal Features under Strong White Gaussian Noise

Applied Sciences, 2022
As the noise power increases, the target signal features become less obvious, which leads to the failure of weak signal detection methods. To address this problem, a quantum weak signal detection method, Local Semi-Classical Signal Analysis-Singular ...
Tianyi Yu, Shunming Li, Jiantao Lu, Siqi Gong, Jianfeng Gu, Yong Chen   +5 more
doaj   +1 more source

High-Performance Adaptive Weak Fault Diagnosis Based on the Global Parameter Optimization Model of a Cascaded Stochastic Resonance System

Sensors, 2023
Stochastic resonance (SR), as a type of noise-assisted signal processing method, has been widely applied in weak signal detection and mechanical weak fault diagnosis.
Zhihui Lai, Zhangjun Huang, Min Xu, Chen Wang, Junchen Xu, Cailiang Zhang, Ronghua Zhu, Zijian Qiao   +7 more
doaj   +1 more source

Weak Fault Diagnosis Method of Rolling Bearings Based on Variational Mode Decomposition and a Double-Coupled Duffing Oscillator

Applied Sciences, 2023
Aiming at the problems of the low detection accuracy and difficult identification of the early weak fault signals of rolling bearings, this paper proposes a method for detecting the early weak fault signals of rolling bearings based on a double-coupled ...
Shijie Shan, Jianming Zheng, Kai Wang, Ting Chen, Yuhua Shi   +4 more
doaj   +1 more source