Results 31 to 40 of about 360,849 (311)

Signal processing method of bubble detection in sodium flow based on inverse Fourier transform to calculate energy ratio

open access: yesNuclear Engineering and Technology, 2021
Electromagnetic vortex flowmeter is a new type of instrument for detecting leakage of steam generator, and the signal processing method based on the envelope to calculate energy ratio can effectively detect bubbles in sodium flow.
Wei Xu   +4 more
doaj   +1 more source

Psi_B-energy operator and cross-power spectral density [PDF]

open access: yes, 2014
In this paper we consider the hermitian extension of the cross-Psi_B-energy operator that we will denote by Psi_H. In addition, cross energy terms are formalized through multivariate signals representation.
CHONAVEL, Thierry   +2 more
core   +1 more source

Signal Detection Based on Power-Spectrum Sub-Band Energy Ratio [PDF]

open access: yes, 2020
The power-spectrum sub-band energy ratio (PSER) has been applied in a variety of fields, but reports on its statistical properties and application in signal detection have been limited.
Song Wang, Yanzhu Hu, Han Li
core   +1 more source

Concentration Uncertainty Principles for Signals on the Unit Sphere [PDF]

open access: yes, 2016
The uncertainty principle is an important and powerful tool, with many applications in signal processing. This paper presents two concentration uncertainty principles for signals on the sphere which relate the localization of the concentration of a ...
Khalid, Zubair   +3 more
core   +1 more source

MSE lower bounds conditioned by the energy detector [PDF]

open access: yes, 2007
A wide variety of processing incorporates a binary detection test that restricts the set of observations for parameter estimation. This statistical conditioning must be taken into account to compute the Cramer-Rao bound (CRB) and more generally, lower ...
Chaumette, Eric   +6 more
core   +1 more source

Spatial Filter Bank in the Spherical Harmonic Domain: Reconstruction and Application [PDF]

open access: yes, 2021
Filter banks are an integral part of modern signal processing. They may also be applied to spatial filtering and the employed spatial filters can be designed with a specific shape for the analysis, e. g. suppressing side-lobes. After extracting spatially
Politis, Archontis   +7 more
core   +1 more source

1-D Convolutional Neural Network-Based Models for Cooperative Spectrum Sensing

open access: yesFuture Internet, 2023
Spectrum sensing is an essential function of cognitive radio technology that can enable the reuse of available radio resources by so-called secondary users without creating harmful interference with licensed users.
Omar Serghini   +4 more
doaj   +1 more source

Fault Detection of Gearbox from Inverter Signals Using Advanced Signal Processing Techniques [PDF]

open access: yes, 2012
The gear faults are time-localized transient events so time-frequency analysis techniques (such as the Short-Time Fourier Transform, Wavelet Transform, motor current signature analysis) are widely used to deal with non-stationary and nonlinear signals ...
Gu, Fengshou   +7 more
core   +1 more source

The Roles of Majorization and Generalized Triangular Decomposition in Communication and Signal Processing [PDF]

open access: yes, 2011
Signal processing is an art that deals with the representation, transformation, and manipulation of the signals and the information they contain based on their specific features.
Weng, Ching-Chih
core   +1 more source

Method of Range Ambiguity Suppression Combining Sparse Reconstruction and Matched Filter

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Synthetic aperture radar (SAR) images are often affected by range ambiguity due to antenna sidelobe characteristics and pulse operating mechanism. The work of range ambiguity suppression focuses on both SAR system design and signal processing. On the one
Meng Qi   +4 more
doaj   +1 more source

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