Detection of amplitude modulation with squeezed light for sensitivity beyond the shot-noise limit [PDF]
, 1988 An improvement in precision beyond the limit set by the vacuum-state or zero-point fluctuations of the electromagnetic field is reported for the detection of amplitude modulation encoded on a weak signal beam. The improvement is achieved by employing the
Kimble, H. J., Wu, Ling-An, Xiao, Min
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Weak Signal Detection Algorithm Based on Particle Filtering [PDF]
Hangkong bingqiIn the traditional particle filter algorithm, there exist problems such as poor robustness against noise and clutter, and difficulty in balancing the detection probability and false alarm probability.
Mao Senpeng, Wang Pengfei, Chen Wei, Guo Lei
doaj +1 more source
Principal factors that determine the extension of detection range in molecular beacon aptamer/conjugated polyelectrolyte bioassays. [PDF]
, 2015 A strategy to extend the detection range of weakly-binding targets is reported that takes advantage of fluorescence resonance energy transfer (FRET)-based bioassays based on molecular beacon aptamers (MBAs) and cationic conjugated polyelectrolytes (CPEs).
Bazan, Guillermo C +5 more
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A Weak Signal Detection Method for Bearing Based on QGA and Stochastic Resonance
Journal of Harbin University of Science and Technology, 2020 Aiming at the problems that the vibration signal is weak and the SNR is low in its early failure stage of rolling bearing, a weak signal detection method combining Quantum Genetic Algorithm (QGA) and Stochastic Resonance is proposed, which improves SNR ...
GE Jiang hua +4 more
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Witnessing effective entanglement over a 2km fiber channel [PDF]
, 2010 We present a fiber-based continuous-variable quantum key distribution system. In the scheme, a quantum signal of two non-orthogonal weak optical coherent states is sent through a fiber-based quantum channel. The receiver simultaneously measures conjugate
Bennett +42 more
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Optomechanical scheme for the detection of weak impulsive forces [PDF]
, 2001 We show that a cooling scheme and an appropriate quantum nonstationary strategy can be used to improve the signal to noise ratio for the optomechanical detection of weak impulsive forces.Comment: 4 pages, Revtex, 1 ...
A.N. Cleland +22 more
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Continuous phase amplification with a Sagnac interferometer [PDF]
, 2009 We describe a weak value inspired phase amplification technique in a Sagnac interferometer. We monitor the relative phase between two paths of a slightly misaligned interferometer by measuring the average position of a split-Gaussian mode in the dark ...
Dixon, P. Ben +4 more
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Two-Channel Information Fusion Weak Signal Detection Based on Correntropy Method
Applied Sciences, 2022 In recent years, as a simple and effective method of noise reduction, singular value decomposition (SVD) has been widely concerned and applied. The idea of SVD for denoising is mainly to remove singular components (SCs) with small singular value (SV ...
Siqi Gong +5 more
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Nonlinear relaxation time and the detection of weak signals [PDF]
Physical Review A, 1991 Laser systems can be used to detect very weak optical signals. The physical mechanism is the dynamical process of the relaxation of a laser from an unstable state to a steady stable state. We present an analysis of this process based on the study of the nonlinear relaxation time.
Jiménez Aquino, José Inés +1 more
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Signal processing in local neuronal circuits based on activity-dependent noise and competition
, 2009 We study the characteristics of weak signal detection by a recurrent neuronal network with plastic synaptic coupling. It is shown that in the presence of an asynchronous component in synaptic transmission, the network acquires selectivity with respect to
Andersen P. +7 more
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