Results 81 to 90 of about 10,305 (253)

Sleep and cardiac autonomic modulation in older adults: Insights from an at‐home study with auditory deep sleep stimulation

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary The autonomic nervous system regulates cardiovascular activity during sleep, likely impacting cardiovascular health. Aging, a primary cardiovascular risk factor, is associated with cardiac autonomic disbalance and diminished sleep slow waves. Therefore, slow waves may be linked to aging, autonomic activity and cardiovascular health. However, it
Stephanie Huwiler   +5 more
wiley   +1 more source

Filtros volterra adaptativos: estruturas interpoladas e modelos estocásticos [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2009.Este trabalho de pesquisa visa o estudo de filtros Volterra adaptativos objetivando desenvolver novas ...
Batista, Eduardo Luiz Ortiz
core  

Efficient Implementation of Ternary SDM Filters using State-of-the-Art FPGA [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2011
We present the analysis of a ternary FIR filter at varying OSR (Over Sampling Ratios). The sigma delta modulated ternary filter impulse responses obtained using Matlab at varying OSRs show that each doubling of OSR results in an increase of 10dB in the
Tayabuddin Memon   +2 more
doaj  

Efficient and Accurate Optimal Linear Phase FIR Filter Design Using Opposition-Based Harmony Search Algorithm

open access: yesThe Scientific World Journal, 2013
In this paper, opposition-based harmony search has been applied for the optimal design of linear phase FIR filters. RGA, PSO, and DE have also been adopted for the sake of comparison. The original harmony search algorithm is chosen as the parent one, and
S. K. Saha   +5 more
doaj   +1 more source

Quantifying Cortical Maturational Aspects During Different Vigilance States in Preterm Infants by Advanced EEG Analysis

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Preterm birth is a significant risk factor for atypical neurodevelopment, yet early electrophysiological markers of brain maturation are still lacking. Non‐invasive electroencephalographic (EEG) monitoring of cortical maturation in these patients holds promise as a tool for neurodevelopmental prediction.
Gaia Burlando   +9 more
wiley   +1 more source

Robust Filters for Intensive Care Monitoring: Beyond the Running Median [PDF]

open access: yes
Current alarm systems on intensive care units create a very high rate of false positive alarms because most of them simply compare the physiological measurements to fixed thresholds.
Fried, Roland   +2 more
core  

Receding Horizon Unbiased FIR Filters and Their Application to Sea Target Tracking

open access: yesJournal of Control Science and Engineering, 2018
Finite impulse response (FIR) state estimation algorithms have been much discussed in literature lately. It is well known that they allow overcoming the Kalman filter divergence caused by modeling uncertainties.
Boris Skorohod
doaj   +1 more source

An Electroencephalographic Study of Sleep Spindle and Infraslow Oscillation in Children With Autism Spectrum Disorder

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT We investigated whether sleep microstructures show spatial differences in young children with autism compared with typically developing peers. 32‐channel electroencephalography (EEG) during natural sleep after 5–6 h of partial sleep deprivation was recorded from 53 children (26 with autism, 27 typically developing; 1.1–5.1 years).
Kevin Liu   +7 more
wiley   +1 more source

Power Efficient Design of Parallel/Serial FIR Filters in RNS [PDF]

open access: yes, 2012
It is well known that the Residue Number System (RNS) provides an efficient implementation of parallel FIR filters especially when the filter order and the dynamic range are high.
Cardarilli, G   +14 more
core   +1 more source

Minimax and WLS Designs of Digital FIR Filters Using SOCP for Aliasing Errors Reduction in BI-DAC

open access: yesIEEE Access, 2019
This paper presented the optimal minimax and weighted least squares (WLS) methods for designing digital finite impulse response (FIR) filters to reduce the aliasing errors generated by the non-ideality of analog filters and mixers in bandwidth ...
Xing Yang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy