Results 81 to 90 of about 5,324 (208)

Modified Gauss-Legendre, Lobatto and Radau cubature formulas for the numerical evaluation of 2-D singular integrals

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
A numerical technique, first reported in 1979 in refs.[1] and [2], for the numerical evaluation of two-dimensional Cauchy-type principal-value integrals, is extended in this paper to include several cubature formlas of the Radau and Lobatto types.
P. S. Theocaris
doaj   +1 more source

Sensorless control of PMSM using an adaptively tuned SCKF

open access: yesThe Journal of Engineering, 2019
This study reports the application of an adaptively tuned square-root Cubature Kalman filter (SCKF) for the speed and position estimation of a permanent magnet synchronous motor (PMSM) drive.
Gulur Raghavendra Gopinath   +1 more
doaj   +1 more source

Cross-product cubature error bounds [PDF]

open access: yesMathematics of Computation, 1970
This paper is concerned with cross-product cubature rules. We use Sard’s Kernel Theorem [ 10 ] [10] to express the cross-product cubature error in terms of one variable kernels. This simplified representation of the error is then used to derive cubature error bounds analogous to those obtained by Secrest and ...
openaire   +2 more sources

An Adaptive Cubature Kalman Filter Based on Resampling-Free Sigma-Point Update Framework and Improved Empirical Mode Decomposition for INS/CNS Navigation

open access: yesMathematics
For the degradation of the filtering performance of the INS/CNS navigation system under measurement noise uncertainty, an adaptive cubature Kalman filter (CKF) is proposed based on improved empirical mode decomposition (EMD) and a resampling-free sigma ...
Yu Ma, Di Liu
doaj   +1 more source

An Improved Strong Tracking Cubature Kalman Filter for GPS/INS Integrated Navigation Systems

open access: yesSensors, 2018
The cubature Kalman filter (CKF) is widely used in the application of GPS/INS integrated navigation systems. However, its performance may decline in accuracy and even diverge in the presence of process uncertainties. To solve the problem, a new algorithm
Kaiqiang Feng   +7 more
doaj   +1 more source

Research on Active Collision Avoidance Control of Vehicles Based on Estimation of Road Surface Adhesion Coefficient

open access: yesWorld Electric Vehicle Journal
In order to solve the problem that intelligent vehicle active collision avoidance systems have different decision-making results under different road conditions, the square-root cubature Kalman filtering algorithm is used to estimate the road adhesion ...
Hongxiang Wang, Jian Wang, Ruofei Du
doaj   +1 more source

Cubature quadrature Kalman filter

open access: yesIET Signal Processing, 2013
In this correspondence, the authors develop a novel method based on spherical radial cubature and Gauss–Laguerre quadrature rule for non‐linear state estimation problems. The proposed filter, referred as cubature quadrature Kalman filter (CQKF) would be able to overcome inherent disadvantages associated with the earlier reported cubature Kalman filter (
Shovan Bhaumik, null Swati
openaire   +1 more source

Quantum Cubature Codes

open access: yes
Bosonic codes utilize the infinite-dimensional Hilbert space of harmonic oscillators to encode quantum information, offering a hardware-efficient approach to quantum error correction. Designing these codes requires precise geometric arrangements of quantum states in the phase space.
Yang, Yaoling   +3 more
openaire   +2 more sources

Cubature Formulae and Polynomial Ideals

open access: yesAdvances in Applied Mathematics, 1999
The main purpose of this paper is to study the structure of cubature formulae using the notion of a polynomial ideal and its variety. The author proves that if \(I\) is a polynomial ideal generated by a proper set of \((2n-1)\) orthogonal polynomials and if the cardinality of the variety \(V(I)\) is equal to the codimension of \(I\), then there exists ...
openaire   +1 more source

Multi-Agent cubature Kalman optimizer: A novel metaheuristic algorithm for solving numerical optimization problems

open access: yesInternational Journal of Cognitive Computing in Engineering
Optimization problems arise in diverse fields such as engineering, economics, and industry. Metaheuristic algorithms, including the Simulated Kalman Filter (SKF), have been developed to solve these problems.
Zulkifli Musa   +2 more
doaj   +1 more source

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