Results 11 to 20 of about 160,246 (263)

Flexible Kurtogram for Extracting Repetitive Transients for Prognostics and Health Management of Rotating Components

open access: yesIEEE Access, 2019
Rotating components are commonly used in industry and their failures may cause unexpected accidents and economic losses. To prevent these, prognostics and health management of rotating components attract much attention. The key for prognostics and health
Jingjing Zhong   +3 more
doaj   +1 more source

Aircraft Inertial Measurement Unit Fault Diagnosis Based on Optimal Two-Stage UKF [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
Optimal two stage Kalman filter (OTSKF) is able to obtain optimal estimation of system states and bias for linear system which contains random bias. Unscented Kalman filter (UKF) is a conventional nonlinear filtering method which utilizes Sigmas point ...

doaj   +1 more source

Violation of Bell-CHSH Inequalities through Optimal Local Filters in the Vacuum

open access: yesQuantum Reports, 2020
We investigate quantum correlations appearing for two-qubit detectors which are initially uncorrelated and locally coupled to a massless scalar field in a vacuum state.
Akira Matsumura, Yasusada Nambu
doaj   +1 more source

The Optimal Distributed Kalman Filtering Fusion With Linear Equality Constraint

open access: yesIEEE Access, 2021
In this paper, the optimal distributed Kalman filtering fusion with linear equality constraint (LEC) is proposed. When the Kalman filter subject to LEC is applied in state estimation of distributed linear dynamic system, all local error covariance ...
Hua Li, Shengli Zhao
doaj   +1 more source

Optimal Filter Estimation for Lucas-Kanade Optical Flow

open access: yesSensors, 2012
Optical flow algorithms offer a way to estimate motion from a sequence of images. The computation of optical flow plays a key-role in several computer vision applications, including motion detection and segmentation, frame interpolation, three ...
Remus Brad, Nusrat Sharmin
doaj   +1 more source

ANALYSIS OF THE CHIRPLET TRANSFORM-BASED ALGORITHM FOR RADAR DETECTION OF ACCELERATED TARGETS

open access: yesRadio Physics and Radio Astronomy, 2017
Purpose: Efficiency analysis of an optimal algorithm of chirp signal processing based on the chirplet transform as applied to detection of radar targets in uniformly accelerated motion.
V. G. Galushko, D. M. Vavriv
doaj   +1 more source

LOCAL HEIGHT CALCULATION ERRORS IN THE PLANET SURFACE RELIEF RETRIEVED FROM IMAGES BY THE IMPROVED PHOTOCLINOMETRY METHOD [PDF]

open access: yesRadio Physics and Radio Astronomy
Subject and Purpose. In this work, the planet surface area relief is calculated using the Improved Photoclinometry Method (IPCM) and starting from a set of source images. Height deviations from the true relief altitudes are studied by computer simulation
I. A. Dulova, N. V. Bondarenko
doaj   +1 more source

Selective Sampling and Optimal Filtering for Subpixel-Based Image Down-Sampling

open access: yesIEEE Access, 2019
Subpixel-based image down-sampling has been widely used to improve the apparent resolution of down-sampled images on display. However, previous subpixel rendering methods often introduce distortions, such as aliasing and color-fringing.
Sung-Ho Chae   +4 more
doaj   +1 more source

Optimal Filtering of Markov Jump Processes Given Observations with State-Dependent Noises: Exact Solution and Stable Numerical Schemes

open access: yesMathematics, 2020
The paper is devoted to the optimal state filtering of the finite-state Markov jump processes, given indirect continuous-time observations corrupted by Wiener noise.
Andrey Borisov, Igor Sokolov
doaj   +1 more source

A Survey on Optimal Signal Processing Techniques Applied to Improve the Performance of Mechanical Sensors in Automotive Applications

open access: yesSensors, 2007
In this paper a survey on recent applications of optimal signal processing techniques to improve the performance of mechanical sensors is made. Here, a comparison between classical filters and optimal filters for automotive sensors is made, and the ...
Wilmar Hernandez
doaj   +1 more source

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