Results 1 to 10 of about 860,460 (345)
The Minimum AC Signal Model of Bipolar Transistor in Amplification Region for Weak Signal Detection [PDF]
Sensors, 2021 This paper presents a minimum signal model via the AC small-signal model and the uncertainty principle, which reveals the minimum AC signal that can be amplified by a bipolar transistor.
Lidong Huang +4 more
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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
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Surface-wave-enabled darkfield aperture for background suppression during weak signal detection [PDF]
, 2010 Sensitive optical signal detection can often be confounded by the presence of a significant background, and, as such, predetection background suppression is substantively important for weak signal detection.
Aigouy +9 more
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Research of weak signal detection based on super‐regenerative chaotic oscillator
Electronics Letters, 2022 Under certain circumstances, chaos will occur in the super‐regenerative receiver. The gain of the receiver reaches the maximum and the receiver is immune to the external noise in this case. The concept of super‐regenerative chaotic oscillator is proposed,
Yifan Yang +7 more
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Weak ultrasonic signal detection in strong noise
Acta Physica Sinica, 2018 In order to solve the problem of extracting ultrasonic signals from strong background noise, a novel method, which is termed APSO-SD algorithm and based on improved adaptive particle swarm optimization (APSO) and sparse decomposition (SD) theory, is proposed in this paper.
null Wang Da-Wei1\2 +1 more
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Application of Fractional-Order Multi-Wing Chaotic System to Weak Signal Detection [PDF]
Fractal and FractionalThis work investigates a fractional-order multi-wing chaotic system for detecting weak signals. The influence of the order of fractional calculus on chaotic systems’ dynamical behavior is examined using phase diagrams, bifurcation diagrams, and SE ...
Hongcun Mao +4 more
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Detection and interpretation of weak signals
, 2016 Managing safety at a nuclear power plant is about a complex system with demanding technology under time pressure where the cost of failure is exceptionally high. Swedish nuclear power plants have over the last few years introduced Pre-job Briefing and other so called Human Performance Tools to advert errors and strengthen control. By using the Systemic
Richard Wiik
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Effects of Second-Order Matched Stochastic Resonance for Weak Signal Detection
IEEE Access, 2018 Weak signal detection via stochastic resonance (SR) has attracted considerable attention in a wide range of research fields, especially under heavy background noise circumstances.
Haitao Dong +3 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 +8 more
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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
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