Articles with "waveform" as a keyword



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Photonic approach to linearly chirped microwave waveform generation with large time–bandwidth product capability

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Published in 2019 at "Optical Review"

DOI: 10.1007/s10043-019-00565-9

Abstract: Photonic approach to generating linearly chirped waveforms with large time–bandwidth product (TBWP) is proposed and demonstrated. In the approach, a dual-output dual-parallel Mach–Zehnder modulator (DPMZM) is employed to generate dual-tone wavelengths in the two output… read more here.

Keywords: time; chirped microwave; linearly chirped; photonic approach ... See more keywords
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Waveform Integrity in Atrial Fibrillation: The Forgotten Issue of Cardiac Electrophysiology

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Published in 2017 at "Annals of Biomedical Engineering"

DOI: 10.1007/s10439-017-1832-6

Abstract: Atrial fibrillation (AF) is the most common arrhythmia in clinical practice with an increasing prevalence of about 15% in the elderly. Despite other alternatives, catheter ablation is currently considered as the first-line therapy for the… read more here.

Keywords: atrial fibrillation; waveform; cardiac electrophysiology; issue ... See more keywords
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Fuzzy Logic Based Decision System for Context Aware Cognitive Waveform Generation

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Published in 2017 at "Wireless Personal Communications"

DOI: 10.1007/s11277-016-3879-3

Abstract: Cognitive radio is an intelligent radio which will run the cognitive cycle of observing, understand, create knowledge, make a decision and modifies the radio parameters for the given objective. Cognitive radio designed with single purpose… read more here.

Keywords: decision; system; cognitive radio; context aware ... See more keywords
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Optimization of Emission Waveform by Accelerated Particle Swarm Algorithm Based on Logarithmic Frequency Offset Mathematical Model

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Published in 2020 at "Wireless Personal Communications"

DOI: 10.1007/s11277-020-07184-7

Abstract: In this article, a novel technique is applied to achieve time-invariant spatial focusing performance for static and moving target by applying an irregular frequency modulation method to a frequency diverse array (FDA) waveform transmission system.… read more here.

Keywords: frequency; frequency offset; time; particle swarm ... See more keywords
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Crustal velocity structure of central Gansu Province from regional seismic waveform inversion using firework algorithm

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Published in 2017 at "Earthquake Science"

DOI: 10.1007/s11589-017-0184-5

Abstract: The firework algorithm (FWA) is a novel swarm intelligence-based method recently proposed for the optimization of multi-parameter, nonlinear functions. Numerical waveform inversion experiments using a synthetic model show that the FWA performs well in both… read more here.

Keywords: velocity structure; inversion; crustal velocity; waveform ... See more keywords
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Golay pairs waveform for automotive radar target parameters estimation

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Published in 2021 at "Signal, Image and Video Processing"

DOI: 10.1007/s11760-021-01853-1

Abstract: This study considers Golay pair waveform for estimating target parameters in the context of automotive radar operating at 77 GHz. We first provide our proposed scheme reception adapted to the new shaping of the Golay pair… read more here.

Keywords: golay; target parameters; automotive radar; target ... See more keywords
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Age-related effects of three inhalational anesthetics at one minimum alveolar concentration on electroencephalogram waveform

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Published in 2019 at "Aging Clinical and Experimental Research"

DOI: 10.1007/s40520-019-01378-1

Abstract: The characteristics of electroencephalogram (EEG) profiles under general anesthesia may depend on age and type of anesthetic. This study investigated age-related differences in EEG waveforms between three inhalational anesthetics used at the same minimum alveolar… read more here.

Keywords: age related; age; eeg waveform; three inhalational ... See more keywords
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Fast pulsed amperometric waveform for miniaturised flow-through electrochemical detection: Application in monitoring graphene oxide reduction

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Published in 2019 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2019.135087

Abstract: A fast pulsed waveform (2-steps at +400 mV and −400 mV, 10 ms each, 50 Hz cycle repetition) was developed incorporated within a miniaturised EC detector, and used to demonstrate the pulsed amperometric detection (PAD) of hydrazine in… read more here.

Keywords: detection; waveform; oxide reduction; pulsed amperometric ... See more keywords
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Analysis on the waveform features of the split Hopkinson pressure bar tests of plain concrete specimen

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Published in 2017 at "International Journal of Impact Engineering"

DOI: 10.1016/j.ijimpeng.2017.01.004

Abstract: Abstract The tendency of the waveform curve can directly reflect the deformation and failure process of specimen in the SHPB (Split Hopkinson Pressure Bar) test of concrete. Different loading rates will result in the different… read more here.

Keywords: hopkinson pressure; split hopkinson; concrete specimen; pressure bar ... See more keywords
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A new waveform decomposition method for multispectral LiDAR

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Published in 2019 at "ISPRS Journal of Photogrammetry and Remote Sensing"

DOI: 10.1016/j.isprsjprs.2019.01.014

Abstract: Abstract Information derived from waveform decomposition of full-waveform light detection and ranging (LiDAR) data has been widely used in vegetation detection and three-dimensional urban terrain modeling to investigate and interpret the structural diversity of surface… read more here.

Keywords: multispectral lidar; waveform; decomposition; waveform decomposition ... See more keywords
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Pseudo 2D elastic waveform inversion for attenuation in the near surface

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Published in 2017 at "Journal of Applied Geophysics"

DOI: 10.1016/j.jappgeo.2017.05.014

Abstract: Abstract Seismic waveform propagation could be significantly affected by heterogeneities in the near surface zone (0 m–500 m depth). As a result, it is important to obtain as much near surface information as possible. Seismic attenuation, characterized… read more here.

Keywords: inversion; pseudo elastic; elastic waveform; near surface ... See more keywords