Results 11 to 20 of about 505,456 (266)

Filtering via Simulation: Auxiliary Particle Filters [PDF]

open access: yesJournal of the American Statistical Association, 1999
This article analyses the recently suggested particle approach to filtering time series. We suggest that the algorithm is not robust to outliers for two reasons: the design of the simulators and the use of the discrete support to represent the sequentially updating prior distribution. Here we tackle the first of these problems.
Michael K Pitt, Neil Shephard
openaire   +5 more sources

The Generalized Lyapunov Demodulator: High-Bandwidth, Low-Noise Amplitude and Phase Estimation

open access: yesIEEE Open Journal of Control Systems, 2022
Effective demodulation of amplitude and phase is a requirement in a wide array of applications. Recent efforts have increased the demodulation performance, in particular, the Lyapunov demodulator allows bandwidths up to the carrier frequency of the ...
Michael R. P. Ragazzon   +4 more
doaj   +1 more source

Diffraction in grating optical filters with angular-selective light transmission [PDF]

open access: yesКомпьютерная оптика, 2020
The effect of diffraction on the directional light transmittance of grating optical filters designed for smart windows is studied. The filter has an angular selective light transmission due to two thin-film gratings formed by "non-transmissive ...
R.S. Zakirullin
doaj   +1 more source

Electrocardiographic reference values for healthy Netherland Dwarf rabbits and the influence of body position, age and gender

open access: yesWorld Rabbit Science, 2017
The aim of this study was to provide reference values for a single, popular breed of pet rabbit. Moreover, additional objectives were to determine whether sex, body position or age alter Netherland Dwarf rabbit electrocardiographic variables and whether ...
J. M. Chapel   +4 more
doaj   +1 more source

Evaluation of Turbulent Jet Characteristic Scales Using Joint Statistical Moments and an Adaptive Time-Frequency Analysis

open access: yesFluids, 2022
This paper presents an analysis of turbulence characteristic scales and eddy convection velocity of jet flows computed using joint statistical moments, digital filters, and a modified version of the empirical mode decomposition (EMD).
Anderson R. Proença, Stefano Meloni
doaj   +1 more source

Improving Chest Monitoring through Magnetic Resonance Angiogram Image Contrast Enhancement

open access: yesLife, 2023
Magnetic resonance angiography is a medical procedure used to offer an image of the blood vessels and organs of the body. Given the worldwide spread of cardiovascular diseases, more and more resources are invested in treating them. One of the most modern
Beatrice Arvinti, Alexandru Isar
doaj   +1 more source

Geometric Coplanar Constraints-Aided Autonomous Celestial Navigation for Spacecraft in Deep Space Exploration

open access: yesIEEE Access, 2019
Autonomous celestial navigation has been exploited for orbit determination of deep space exploration. Geometric constraints in celestial measurement are the inherent attributes in actual comprehensive autonomous celestial navigation physical systems ...
Xin Ma, Xiaolin Ning, Xiao Chen, Jin Liu
doaj   +1 more source

New ELIN Systems Using CMOS Transistors in Weak Inversion Operation

open access: yesAdvances in Electrical and Computer Engineering, 2013
In this paper new ELIN systems implemented by using CMOS transistors in weak inversion operation are presented. The proposed systems exploit the exponential-law characteristics of the subthreshold CMOS transistors.
BOZOMITU, R. G., CEHAN, V.
doaj   +1 more source

Locus filters

open access: yesOptics Express, 2022
In this paper, directly following from Gage [J. Opt. Soc. Am.23,46(1993)10.1364/JOSA.23.000046], we study the design of a particular theoretical filter for photography, that we call the locus filter. It is built in such a way that a Wien-Planckian light (of any temperature) is spectrally mapped to another Wien-Planckian light.
Rada Deeb, Graham Finlayson
openaire   +4 more sources

Appropriateness of Numbers of Receptive Fields in Convolutional Neural Networks Based on Classifying CIFAR-10 and EEACL26 Datasets

open access: yesElectrical, Control and Communication Engineering, 2018
The topical question studied in this paper is how many receptive fields (filters) a convolutional layer of a convolutional neural network should have. The goal is to find a rule for choosing the most appropriate numbers of filters. The benchmark datasets
Romanuke Vadim
doaj   +1 more source

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