Results 31 to 40 of about 861,138 (294)
Shock and Vibration, 2018 For solving detection problems of multifrequency weak signals in noisy background, a novel weak signal detection method based on variational mode decomposition (VMD) and rescaling frequency-shifted multistable stochastic resonance (RFMSR) with analytical
Dongying Han, Xiao Su, Peiming Shi
doaj +1 more source
Development Toward a Ground-Based Interferometric Phased Array for Radio Detection of High Energy Neutrinos [PDF]
, 2017 The in-ice radio interferometric phased array technique for detection of high energy neutrinos looks for Askaryan emission from neutrinos interacting in large volumes of glacial ice, and is being developed as a way to achieve a low energy threshold and a
Avva, J. +18 more
core +2 more sources
Approach to weak signal extraction and detection via sparse representation
Tongxin xuebao, 2015 The sparsity models and their popular evaluation algorithms were presented.A sparse representation based approach to weak signal extraction and detection was proposed.Furthermore,a fast algorithm was developed to reduce the computational complexity of ...
Ya-fei TANG, Yun-yong ZHANG, Zhi-bin GUO
doaj +2 more sources
Differential amplitude scanning for retinal imaging: a theoretical study [PDF]
, 2010 A differential amplitude scanning system for ophthalmoscopy is described theoretically. The differential scanning ophthalmoscope (DSO) samples the retina with two laterally displaced spots.
See, Steve Gruppetta, Webb
core +1 more source
Results in Physics, 2021 Because the Duffing equation is very sensitive to weak signals and noise immunity, the modified Duffing detection system is applied to detect the weak nonlinear signal in nonlinear ultrasonic experiment.
Yuhua Zhang, Silong Quan, Guoquan Liu
doaj +1 more source
Weak Gravitational Lensing by Dark Clusters [PDF]
, 2002 We calculate the abundance of dark-matter concentrations that are sufficiently overdense to produce a detectable weak-gravitational-lensing signal. Most of these overdensities are virialized halos containing identifiable X-ray and/or optical clusters ...
Kamionkowski, Marc, Weinberg, Nevin N.
core +4 more sources
Detecting weak signals in high dimensions
Journal of Multivariate Analysis, 2016 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
Clinical Insights Into Hypercalcemia of Malignancy in Childhood
Pediatric Blood &Cancer, EarlyView.ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley +1 more source
Signal Processing Method and Evaluation Method for Weak Doppler Signal Detection
SensorsWhen the amplitude of the laser Doppler signal is less than that of the noise amplitude, the speed information cannot be identified. In this paper, the recognition of weak Doppler signals is accomplished by superimposing multiple-frame Doppler signals in
Chongbin Xi +3 more
doaj +1 more source
Weak harmonic signal detection method in chaotic interference based on extended Kalman filter
Digital Communications and Networks, 2019 The traditional methods of weak harmonic signal detection under strong chaotic interference often suffer from high computational complexity and poor performance.
Chengye Lu +3 more
doaj +1 more source