Results 11 to 20 of about 971,002 (215)

Synchronous machine parameter identification in frequency and time domain [PDF]

open access: yesSerbian 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

Broadband Beamspace DOA Estimation: Frequency-Domain and Time-Domain Processing Approaches

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
Frequency-domain and time-domain processing approaches to direction-of-arrival (DOA) estimation for multiple broadband far field signals using beamspace preprocessing structures are proposed.
Yan Shefeng
doaj   +2 more sources

Time-Domain and Monostatic-like Frequency-Domain Methods for Bistatic SAR Simulation

open access: yesSensors, 2021
In recent years, an increasing interest has been devoted to bistatic SAR configurations, which can be effectively used to improve system performance and/or to increase the amount of physical information retrievable from the observed scene.
Gerardo Di Martino   +3 more
doaj   +1 more source

Time-Domain Implementation and Analyses of Multi-Motion Modes of Floating Structures

open access: yesJournal of Marine Science and Engineering, 2022
The study of wave-structure interactions involving nonlinear forces would often make use of the popular hybrid frequency–time domain method. In the hybrid method, the frequency-domain analysis could firstly provide the reliable and accurate dynamic ...
Wanan Sheng   +6 more
doaj   +1 more source

Effect of duration of hypertension on heart rate variability

open access: yesNational Journal of Physiology, Pharmacy and Pharmacology, 2019
Background: Hypertension is the most prevalent noncommunicable disease. It is a multisystem disorder that affects many organs of the body including cardiovascular system, and it markedly increases both morbidity and mortality in the population ...
Jyothi S, Mangala Gowri S R
doaj   +1 more source

Time and frequency domain in the business cycle structure

open access: yesAgricultural Economics (AGRICECON), 2012
The presented paper deals with the identification of cyclical behaviour of business cycle from the time and frequency domain perspective. Herewith, methods for obtaining the growth business cycle are investigated - the first order difference, the ...
Jitka POMĚNKOVÁ, Roman MARŠÁLEK
doaj   +1 more source

Adaptive SVD Denoising in Time Domain and Frequency Domain

open access: yesApplied Sciences
In seismic data processing, noise not only affects velocity analysis and seismic migration, but also causes potential risks in post-stack processing because of the artifacts.
Meixuan Ren   +5 more
doaj   +1 more source

Normalized Study of Three-Parameter System in the Time Domain and Frequency Domain

open access: yesShock and Vibration, 2017
Three-parameter isolation system can be used to isolate microvibration for control moment gyroscopes. Normalized analytical model for three-parameter system in the time domain and frequency domain is proposed by using analytical method.
Xiao-Lei Jiao, Yang Zhao, Wen-Lai Ma
doaj   +1 more source

Harmonic Simulation Methods in Power Systems

open access: yesIteckne, 2020
The harmonic simulation on power systems can be performed using methodologies which are focused on time and frequency domain. The solution of power systems under harmonics require a complete and detailed solution of grid equations, and consequently ...
Carlos Barrera, Alex Valenzuela
doaj   +1 more source

Perbandingan Antara Domain Waktu dan Frekuensi untuk Pengenalan Sinyal EMG

open access: yesJurnal Rekayasa Elektrika, 2021
One way to recognize hand gestures is to use signal electromyography (EMG). The processed signal can use the time domain, frequency domain, or a mixture of the two domains.
Daniel Pamungkas   +2 more
doaj   +1 more source

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