Results 331 to 340 of about 27,933,437 (394)
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Temporal-Spatio Graph Based Spectrum Analysis for Bearing Fault Detection and Diagnosis
IEEE transactions on industrial electronics (1982. Print), 2021This article suggests that the correlation information, hidden in spatial configuration and temporal dynamic of frequencies, is an important indication for bearing health condition.
Teng Wang +3 more
semanticscholar +1 more source
An approach for wheel flat detection of railway train wheels using envelope spectrum analysis
Structure and Infrastructure Engineering, 2020Due to the increasing demand for safer and faster rail transport, train wheelsets operating under high axle loads require more careful and reliable inspections and maintenance.
A. Mosleh +3 more
semanticscholar +1 more source
IEEE Sensors Letters, 2020
In this letter, the multivariate automatic singular spectrum analysis (MA-SSA) and multivariate sliding-mode singular spectrum analysis (MSM-SSA) algorithms are proposed as multivariate extensions to automatic singular spectrum analysis and sliding-mode ...
Sahil Jain, Rohan Panda, R. Tripathy
semanticscholar +1 more source
In this letter, the multivariate automatic singular spectrum analysis (MA-SSA) and multivariate sliding-mode singular spectrum analysis (MSM-SSA) algorithms are proposed as multivariate extensions to automatic singular spectrum analysis and sliding-mode ...
Sahil Jain, Rohan Panda, R. Tripathy
semanticscholar +1 more source
Spectrum Analysis and Convolutional Neural Network for Automatic Modulation Recognition
IEEE Wireless Communications Letters, 2019Recent convolutional neural networks (CNNs)-based image processing methods have proven that CNNs are good at extracting features of spatial data. In this letter, we present a CNN-based modulation recognition framework for the detection of radio signals ...
Yuan Zeng +4 more
semanticscholar +1 more source
On the analysis of the phosphorescence spectrum of [PDF]
The phosphorescence spectrum of , recently obtained in an alcane matrix at low temperature, has been modelled by means of semi-empirical quantum-chemical calculations. The transition is symmetry as well as spin-multiplicity forbidden. The spectrum is successfully analysed in terms of the Herzberg - Teller mechanism combined with spin - orbit ...
Fabrizia Negri, Giorgio Orlandi
openaire +1 more source
Geophysics, 2019
We have evaluated a fast and memory efficient implementation of the multidimensional singular spectrum analysis (MSSA) method for seismic data reconstruction. The new algorithm makes use of random projections and the structure of Hankel matrices to avoid
Jinkun Cheng, M. Sacchi, Jianjun Gao
semanticscholar +1 more source
We have evaluated a fast and memory efficient implementation of the multidimensional singular spectrum analysis (MSSA) method for seismic data reconstruction. The new algorithm makes use of random projections and the structure of Hankel matrices to avoid
Jinkun Cheng, M. Sacchi, Jianjun Gao
semanticscholar +1 more source
Adaptive singular spectrum analysis for seismic denoising and interpolation
Geophysics, 2019We have developed an adaptive singular spectrum analysis (ASSA) method for seismic data denoising and interpolation purposes. Our algorithm iteratively updates the singular-value decomposition (SVD) of current spatial patches using the most recently ...
Hojjat Haghshenas Lari +3 more
semanticscholar +1 more source
Computerized Spectrum Analysis
Applied Spectroscopy, 1970A system to automatically reduce and analyze the data on a spectrogram is in current use. The techniques used and the system are described. The system's principal components consist of a scanning densitometer with a built-on linear encoder, a 16-kc word rate analog-to-digital converter, and an IBM 1800 process computer with magnetic disk memory.
Richard T. Schneider, Chester D. Kylstra
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Spectrum Analysis of Human Pulse [PDF]
Pulse spectral graphs (PSG) were obtained from pulses taken on the wrist by using electronics and computers. Energy ratio (ER) is defined as the ratio of the energy of PSG below 10 Hz to that above 10 Hz. We find that the ER for healthy persons is above 100 at all three-finger positions on both wrists, but those for sick persons are below 100 at some ...
Ling Y. Wei, Chun T. Lee
openaire +2 more sources

