Results 21 to 30 of about 5,320,784 (238)
Boosting NOMA systems through smart metasurfaces
Frontiers in Communications and Networks, 2022 Smart metasurfaces have recently emerged as a promising paradigm for next-generation wireless communication systems, providing a reconfigurable radio propagation environment for a wide range of services and applications.
Piergiuseppe Di Marco +4 more
doaj +1 more source
Time-domain parametric sensitivity analysis of multiconductor transmission lines [PDF]
, 2011 We present a new parametric macromodeling technique for lossy and dispersive multiconductor transmission lines (MTLs). This technique can handle design parameters, such as substrate or geometrical layout features, and provide time-domain sensitivity ...
Antonini, G +4 more
core +2 more sources
Nonparametric frequency domain analysis of nonstationary multivariate time series [PDF]
, 2002 We analyse the properties of nonparametric spectral estimates when applied to long memory and trending nonstationary multiple time series. We show that they estimate consistently a generalized or pseudo-spectral density matrix at frequencies both close ...
Velasco, Carlos
core +3 more sources
Harmonic analysis based on time domain mutual-multiplication window
Journal of Modern Power Systems and Clean Energy, 2016 The signal spectral leakage and fence effect are prone to take place during the power harmonic analysis by fast fourier transform (FFT) under asynchronous sampling. The inhibiting ability of classical window functions is restricted by side-lobe behaviors.
Tianyuan Tan +5 more
doaj +1 more source
Spectral and Nonlinear Analysis of Electrodermal Activity in Adolescent Anorexia Nervosa
Applied Sciences, 2020 Anorexia nervosa (AN) is an eating disorder with increasing prevalence in childhood and adolescence. Sympathetic dysregulation is supposed to be the underlying mechanism of increased cardiovascular risk in AN.
Zuzana Visnovcova +8 more
doaj +1 more source
Fast finite difference time domain analysis of microstrip patch antennas [PDF]
, 1991 Although the finite-difference-time-domain method has been successfully used to model microstrip-fed patch antennas, this has been achieved using uniform grids.
Daniel, EM, Railton, CJ
core +2 more sources
Detailed modelling and analysis of digital mho distance relay with single-pole operation
Acta Polytechnica, 2021 This paper introduces a methodology for modelling a digital admittance-type distance relay using PSCAD/EMTDC. The proposed distance relay was tested in a simulation of the Brazilian power grid with predetermined fault scenarios. The goal of this paper is
Paulo Henrique Barbosa de Souza Pinheiro +4 more
doaj +1 more source
On the Time Domain Error Caused By the Frequency Domain Sampling Rate in a Reverberation Chamber
IEEE Access, 2019 The time domain (TD) response of a reverberation chamber (RC) can be obtained from the inverse Fourier transform of the measured S-parameters in the frequency domain (FD).
Jianhua Xu, Yongjiu Zhao, Qian Xu
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Time domain analysis of a wideband common-mode suppression filter for bent interconnects [PDF]
, 2011 A technique to efficiently reduce differential-to-common mode conversion occuring at a bend discontinuity in coupled microstrip lines is investigated. Total signal integrity in the interconnect structure has been improved by minimizing the differential ...
De Zutter, Daniël +4 more
core +1 more source
工程科学学报, 2018 In the harsh marine environment, the traditional aluminum alloy coating has difficulty meeting the requirements of use, which can affect equipment performance.
SUN Xiao-feng +4 more
doaj +1 more source