Results 21 to 30 of about 5,137,492 (319)
Data-Driven Cyber-Attack Detection for PV Farms via Time-Frequency Domain Features
IEEE Transactions on Smart Grid, 2022 The internetworking of grid-connected power electronics converters (PECs) in photovoltaic (PV) farms has inevitably expanded the cyber-attack surfaces. This paper presents a comprehensive study on cyber-attack detection and diagnosis for PEC-enabled PV ...
Lulu Guo +4 more
semanticscholar +1 more source
Time and Frequency Domain Dynamic Analysis of Offshore Mooring
Journal of Marine Science and Engineering, 2021 The numerical procedures for dynamic analysis of mooring lines in the time domain and frequency domain were developed in this work. The lumped mass method was used to model the mooring lines. In the time domain dynamic analysis, the modified Euler method
Shi He, Aijun Wang
doaj +1 more source
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011 Presented paper focuses on consideration and evaluation of methodical approaches to analyze cyclical structure character of economic activity in transition economy.
Jitka Poměnková +2 more
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Target Speaker Extraction by Directly Exploiting Contextual Information in the Time-Frequency Domain [PDF]
IEEE International Conference on Acoustics, Speech, and Signal ProcessingIn target speaker extraction, many studies rely on the speaker embedding which is obtained from an enrollment of the target speaker and employed as the guidance.
Xue Yang +3 more
semanticscholar +1 more source
Continuous Time Frequency Domain Analysis of Ф-OTDＲ Nonstationary Signals
Journal of Harbin University of Science and Technology, 2021 Most of the natural vibration signals are stationary and modulated by the interference light signal of the distributed optical fiber vibration sensing system.
XU Tao, LI Li
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Frequency-Domain Analysis of Linear Time-Periodic Systems [PDF]
, 2004 In this paper, we study convergence of truncated representations of the frequency-response operator of a linear time-periodic system. The frequency-response operator is frequently called the harmonic transfer function. We introduce the concepts of input,
Bernhardsson, Bo +2 more
core +1 more source
An eLoran Signal Cycle Identification Method Based on Joint Time-Frequency Domain
Remote Sensing, 2022 The eLoran system is an international standardized positioning, navigation, and timing service system, which can complement global navigation satellite systems to cope with navigation and timing warfare. The eLoran receiver measures time-of-arrival (TOA)
Wenhe Yan +6 more
semanticscholar +1 more source
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
Frontiers in Environmental Science, 2021 COVID-19 has morphed from a health crisis to an economic crisis that affected the global economy through several channels. This paper aims to study the impact of COVID-19 on the time-frequency connectedness between Green Bonds and other financial assets.
M. Naeem +4 more
semanticscholar +1 more source
Synchronous machine parameter identification in frequency and time domain [PDF]
Serbian Journal of Electrical Engineering, 2007 This paper presents the results of a frequency and time-domain identification procedure to estimate the linear parameters of a salient-pole synchronous machine at standstill.
Hasni M. +5 more
doaj +1 more source