Results 41 to 50 of about 5,137,492 (319)

Modeling and forecasting exchange rate volatility in time-frequency domain [PDF]

, 2015
This paper proposes an enhanced approach to modeling and forecasting volatility using high frequency data. Using a forecasting model based on Realized GARCH with multiple time-frequency decomposed realized volatility measures, we study the influence of ...
Barunik, Jozef, Krehlik, Tomas, Vacha, Lukas   +2 more
core   +1 more source

Time- and frequency-domain polariton interference

, 2012
We present experimental observations of interference between an atomic spin coherence and an optical field in a {\Lambda}-type gradient echo memory. The interference is mediated by a strong classical field that couples a weak probe field to the atomic ...
B C Buchler, B M Sparkes, Campbell G, G Campbell, M Hosseini, Moiseev S A, P K Lam   +6 more
core   +1 more source

UWB microstrip filter design using a time-domain technique [PDF]

, 2005
A time-domain technique is proposed for ultra-wideband (UWB) microstrip-filter design. The design technique uses the reflection coefficient (S11) specified in the frequency domain. When the frequency response of the UWB filter is given, the response will
Bennett, Bertoni, Chahravarty, Cusick, Foerster, Levy, Mokari, Pozar, Roberts, Sobhy, Tascone   +10 more
core   +1 more source

Dynamically localizing multiple speakers based on the time-frequency domain

EURASIP Journal on Audio, Speech, and Music Processing, 2021
In this study, we present a deep neural network-based online multi-speaker localization algorithm based on a multi-microphone array. Following the W-disjoint orthogonality principle in the spectral domain, time-frequency (TF) bin is dominated by a single
Hodaya Hammer, Shlomo E. Chazan, J. Goldberger, S. Gannot   +3 more
semanticscholar   +1 more source

Photoionization in the time and frequency domain

, 2017
Ultrafast processes in matter, such as the electron emission following light absorption, can now be studied using ultrashort light pulses of attosecond duration ($10^{-18}$s) in the extreme ultraviolet spectral range.
Arnold, C. L., Busto, D., Dahlström, J. M., Feifel, R., Gisselbrecht, M., Harth, A., Isinger, M., Kroon, D., L'Huillier, A., Lindroth, E., Miranda, M., Nandi, S., Squibb, R. J., Zhong, S.   +13 more
core   +1 more source

Adaptive SVD Denoising in Time Domain and Frequency Domain

Applied 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, Enli Zhang, Qiang Kang, Long Chen, Min Zhang, Lei Gao   +5 more
doaj   +1 more source

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

Shock 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

Perbandingan Antara Domain Waktu dan Frekuensi untuk Pengenalan Sinyal EMG

Jurnal 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, Sumantri R Kurniawan, Benrico F Simamora   +2 more
doaj   +1 more source

Gauge techniques in time and frequency domain TLM

, 2009
Typical features of the Transmission Line Matrix (TLM) algorithm in connection with stub loading techniques and prone to be hidden in common frequency domain formulations are elucidated within the propagator approach to TLM.
Cap, Christopoulos, De Cogan, De Cogan, Hein, Hein, Hein, Hein, Hoefer, Johns, Lax, Mandl, Steffen Hein, Witwit   +13 more
core   +1 more source

Association between Disease Severity, Heart Rate Variability (HRV) and Serum Cortisol Concentrations in Horses with Acute Abdominal Pain

Animals, 2020
Heart rate variability (HRV) is a noninvasive technique to detect changes in the autonomous nervous system. It has rarely been investigated in horses with colic.
Heidrun Gehlen, Maria-Dorothee Faust, Remigiusz M. Grzeskowiak, Dagmar S. Trachsel   +3 more
doaj   +1 more source