Results 91 to 100 of about 442,631 (299)

An Improved Gaussian Sum Extended Kalman Filter With Colored Noise for GNSS/SINS Tightly Coupled Positioning and Attitude Determination Systems

IEEE Access
The Gaussian sum extended Kalman filter (GSEKF), as a nonlinear non-Gaussian filter, disregards the impact of colored noise components in non-Gaussian noise engendered by external interference, which may compromise the estimation accuracy in global ...
Qing Dai, Guorui Xiao, Ru Wan, Shenghui Li   +3 more
doaj   +1 more source

Group Symmetry and non-Gaussian Covariance Estimation

, 2013
We consider robust covariance estimation with group symmetry constraints. Non-Gaussian covariance estimation, e.g., Tyler scatter estimator and Multivariate Generalized Gaussian distribution methods, usually involve non-convex minimization problems ...
Soloveychik, Ilya, Wiesel, Ami
core   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Non-Gaussian isocurvature perturbations in dark radiation

, 2012
We study non-Gaussian properties of the isocurvature perturbations in the dark radiation, which consists of the active neutrinos and extra light species, if exist.
A. Albrecht ., A. Lewis, A.G. Riess ., A.G. Riess ., A.P.S. Yadav, A.R. Zhitnitsky, A.R. Zhitnitsky, COrE collaboration, D. Langlois, D. Langlois, D. Langlois, D. Langlois, D.H. Lyth, D.H. Lyth, E. Kawakami, EPIC collaboration, Etsuko Kawakami, G. Mangano, J. Dunkley ., J. Hamann, K. Ichikawa, K.S. Jeong, Kazunori Nakayama, Koichi Miyamoto, L. Kofman, M. Kawasaki, M. Kawasaki, M. Kawasaki, M. Kawasaki, Masahiro Kawasaki, Planck collaboration, R. Keisler ., S. Kasuya, T. Hiramatsu, T. Kobayashi, T. Suyama, Toyokazu Sekiguchi, WMAP collaboration, Y.I. Izotov   +38 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Assessment of the GPC Control Quality Using Non–Gaussian Statistical Measures

International Journal of Applied Mathematics and Computer Science, 2017
This paper presents an alternative approach to the task of control performance assessment. Various statistical measures based on Gaussian and non-Gaussian distribution functions are evaluated.
Domański Paweł D., Ławryńczuk Maciej
doaj   +1 more source

Impact of the non-Gaussian measurement noise on the performance of state-of-the-art state estimators for distribution systems [PDF]

Serbian Journal of Electrical Engineering
This paper aims to investigate the impact of non-Gaussian measurement noise on state estimation (SE) results in distribution systems. To this end, the measurement noise is assumed to be distributed according to Gaussian or one of the following ...
Čubonović Stefan, Ćetenović Dragan, Ranković Aleksandar   +2 more
doaj   +1 more source

Non Gaussian extrema counts for CMB maps

, 2011
In the context of the geometrical analysis of weakly non Gaussian CMB maps, the 2D differential extrema counts as functions of the excursion set threshold is derived from the full moments expansion of the joint probability distribution of an isotropic ...
A. G. Doroshkevich, C. P. Robert, Christophe Gay, Christophe Pichon, Dmitri Pogosyan, M. Liguori, R. J. Adler   +6 more
core   +2 more sources

Non-Gaussian seasonal adjustment

Computers & Mathematics with Applications, 1989
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source