Results 11 to 20 of about 1,227 (79)

Vehicle State Estimation Based on Adaptive Fading Unscented Kalman Filter

open access: yesMathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
Aiming at solving problem of vehicle state estimation, an adaptive fading unscented Kalman filter(AFUKF) algorithm was proposed. Based on this purpose, a 7‐DOF nonlinear vehicle model with the Pacejka nonlinear tire model was established firstly. Then, the vehicle state estimator based on Kalman filter was designed to solve the problem of vehicle state
Yingjie Liu   +2 more
wiley   +1 more source

Computation of volume potentials over bounded domains via approximate approximations [PDF]

open access: yes, 2012
We obtain cubature formulas of volume potentials over bounded domains combining the basis functions introduced in the theory of approximate approximations with their integration over the tangential-halfspace.
Lanzara, F., Maz'ya, V., Schmidt, G.
core   +2 more sources

Recursive joint Cramér‐Rao lower bound for parametric systems with two‐adjacent‐states dependent measurements

open access: yesIET Signal Processing, Volume 15, Issue 4, Page 221-237, June 2021., 2021
Abstract Joint Cramér‐Rao lower bound (JCRLB) is very useful for the performance evaluation of joint state and parameter estimation (JSPE) of non‐linear systems, in which the current measurement only depends on the current state. However, in reality, the non‐linear systems with two‐adjacent‐states dependent (TASD) measurements, that is, the current ...
Xianqing Li   +2 more
wiley   +1 more source

Numerical hyperinterpolation over nonstandard planar regions [PDF]

open access: yes, 2017
We discuss an algorithm (implemented in Matlab) that computes numerically total-degree bivariate orthogonal polynomials (OPs) given an algebraic cubature formula with positive weights, and constructs the orthogonal projection (hyperinterpolation) of a ...
Sommariva, Alvise, Vianello, Marco
core   +1 more source

Multi‐sensor particle filtering with multi‐step randomly delayed measurements

open access: yesIET Science, Measurement &Technology, Volume 15, Issue 1, Page 35-43, January 2021., 2021
Abstract This paper develops particle filtering for multi‐sensor systems with randomly delayed measurements, where the general case that random delay can be multi‐step rather than one‐step or two‐step is considered. Moreover, different sensors can have different delay steps and delay probabilities.
Yunqi Chen, Zhibin Yan
wiley   +1 more source

Electric potential and field calculation of charged BEM triangles and rectangles by Gaussian cubature [PDF]

open access: yes, 2016
It is a widely held view that analytical integration is more accurate than the numerical one. In some special cases, however, numerical integration can be more advantageous than analytical integration.
Glück, Ferenc, Hilk, Daniel
core   +3 more sources

Subperiodic trigonometric subsampling: A numerical approach [PDF]

open access: yes, 2017
We show that Gauss-Legendre quadrature applied to trigonometric poly- nomials on subintervals of the period can be competitive with subperiodic trigonometric Gaussian quadrature. For example with intervals correspond- ing to few angular degrees, relevant
Sommariva, Alvise, Vianello, Marco
core   +1 more source

Tensor product approximations of high dimensional potentials [PDF]

open access: yes, 2009
The paper is devoted to the efficient computation of high-order cubature formulas for volume potentials obtained within the framework of approximate approximations. We combine this approach with modern methods of structured tensor product approximations.
Lanzara, Flavia   +2 more
core   +3 more sources

A note on a family of quadrature formulas and some applications [PDF]

open access: yesOpuscula Mathematica, 2008
In this paper a construction of a one-parameter family of quadrature formulas is presented. This family contains the classical quadrature formulas: trapezoidal rule, midpoint rule and two-point Gauss rule.
Bogusław Bożek   +2 more
doaj  

Weighted Optimal Quadrature Formulas in Sobolev Space and Their Applications

open access: yesAlgorithms
The optimization of computational algorithms is one of the main problems of computational mathematics. This optimization is well demonstrated by the example of the theory of quadrature and cubature formulas.
Kholmat Shadimetov, Khojiakbar Usmanov
doaj   +1 more source

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