Results 21 to 30 of about 2,423 (258)

Some Equivalence Relations and Results over the Commutative Quaternions and Their Matrices

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
In this paper, we give some equivalence relations and results over the commutative quaternions and their matrices. In this sense, consimilarity, semisimilarity, and consemisimilarity over the commutative quaternion algebra and commutative quaternion ...
Kosal Hidayet Huda, Tosun Murat
doaj   +1 more source

Coarse Alignment Technology on Moving base for SINS Based on the Improved Quaternion Filter Algorithm

open access: yesSensors, 2017
Initial alignment of the strapdown inertial navigation system (SINS) is intended to determine the initial attitude matrix in a short time with certain accuracy.
Tao Zhang   +4 more
doaj   +1 more source

Reachability problems in quaternion matrix and rotation semigroups [PDF]

open access: yesInformation and Computation, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Paul Bell, Igor Potapov
openaire   +3 more sources

A Real Representation Method for Solving Yakubovich-j-Conjugate Quaternion Matrix Equation

open access: yesAbstract and Applied Analysis, 2014
A new approach is presented for obtaining the solutions to Yakubovich-j-conjugate quaternion matrix equation X−AX^B=CY based on the real representation of a quaternion matrix. Compared to the existing results, there are no requirements on the coefficient
Caiqin Song   +3 more
doaj   +1 more source

Iterative Algorithm for Solving a Class of Quaternion Matrix Equation over the Generalized (P,Q)-Reflexive Matrices

open access: yesAbstract and Applied Analysis, 2013
The matrix equation ∑l=1uAlXBl+∑s=1vCsXTDs=F, which includes some frequently investigated matrix equations as its special cases, plays important roles in the system theory.
Ning Li, Qing-Wen Wang
doaj   +1 more source

Research on splitting quaternions with generalized Tribonacci hybrid number components [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
This paper introduces the Generalized Tribonacci Hybrid Split Quaternion (GTHSQ), a novel split quaternion with coefficients derived from generalized Tribonacci hybrid numbers.
Yanni Yang, Yong Deng
doaj   +1 more source

Quaternion feedback attitude control system design based on weighted–L2–gain performance

open access: yesResults in Engineering, 2023
The operation and accomplishment of a satellite's mission depend on its capacity to control its attitude. A rotation matrix parameterization, such as a (unit) quaternion, is frequently used to represent the attitude information needed for attitude ...
Harry Septanto   +2 more
doaj   +1 more source

Matrix representation of quaternions

open access: yesLinear Algebra and its Applications, 2003
The authors establish that there are 48 distinct triples of real \(4\times 4\) signed permutation matrices \(H,K,L\), subject to the well known conditions \(HH=-I\), \(HJ=K\) etc., which together with the identity matrix \(I\) will serve as a basis in the regular representation of the real quaternions.
Farebrother, Richard William   +2 more
openaire   +2 more sources

Quaternion Filtering Based on Quaternion Involutions and its Application in Signal Processing

open access: yesIEEE Access, 2019
The quaternion gradient plays an important role in quaternion signal processing, and has undergone several modifications. Recently, three methods for obtaining the quaternion gradient have been proposed based on generalized HR calculus, the quaternion ...
Gang Wang, Rui Xue
doaj   +1 more source

Developing a Static Kinematic Model for Continuum Robots Using Dual Quaternions for Efficient Attitude and Trajectory Planning

open access: yesApplied Sciences, 2023
Kinematic modeling is essential for planning and controlling continuum robot motion. The traditional Denavit Hartenberg (DH) model involves complex matrix multiplication operations, resulting in computationally intensive inverse solutions and trajectory ...
Yunfei Li, Qiuhao Wang, Qian Liu
doaj   +1 more source

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