Improved Jacobian matrix estimation applied to snake robots [PDF]
Frontiers in Robotics and AI, 2023 Two manipulator Jacobian matrix estimators for constrained planar snake robots are developed and tested, which enables the implementation of Jacobian-based obstacle-aided locomotion (OAL) control schemes.
Jostein Løwer +2 more
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Expansion of the Nodal-Adjoint Method for Simple and Efficient Computation of the 2D Tomographic Imaging Jacobian Matrix [PDF]
Sensors, 2021 This paper focuses on the construction of the Jacobian matrix required in tomographic reconstruction algorithms. In microwave tomography, computing the forward solutions during the iterative reconstruction process impacts the accuracy and computational ...
Samar Hosseinzadegan +4 more
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PMU-Based Estimation of Dynamic State Jacobian Matrix [PDF]
2017 IEEE International Symposium on Circuits and Systems (ISCAS), 2017 In this paper, a hybrid measurement- and model-based method is proposed which can estimate the dynamic state Jacobian matrix in near real-time. The proposed method is computationally efficient and robust to the variation of network topology.
Turitsyn, Konstantin, Wang, Xiaozhe
core +3 more sources
Reduced-cost construction of Jacobian matrices for high-resolution inversions of satellite observations of atmospheric composition [PDF]
Atmospheric Measurement Techniques, 2021 Global high-resolution observations of atmospheric composition from satellites can greatly improve our understanding of surface emissions through inverse analyses.
H. Nesser +7 more
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Stiffness analysis of a 3-DOF parallel mechanism for engineering special machining [PDF]
Mechanical Sciences, 2022 There are considerably rigorous requirements for accuracy and stability of the mechanism to accomplish large-scale and complex surface machining tasks in the aerospace field.
H. Zhang +7 more
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Kinematic Comparisons of Hybrid Mechanisms for Bone Surgery: 3-PRP-3-RPS and 3-RPS-3-PRP
Machines, 2022 This paper proposes an approach to derive the Jacobian matrix of a hybrid mechanism by applying a velocity operator to the transformation matrix. This Jacobian matrix is capable of deducing hybrid singularities, which cannot be identified by using the ...
Christopher Reinaldo +3 more
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Singular random matrix decompositions: Jacobians [PDF]
Journal of Multivariate Analysis, 2005 For a singular random matrix Y, we find the Jacobians associated with the following decompositions; QR, Polar, Singular Value (SVD), L'U, L'DM and modified QR (QDR). Similarly, we find the Jacobinas of the following decompositions: Spectral, Cholesky's, L'DL and symmetric non-negative definite square root, of the cross-product matrix S = Y'Y.
González Farías, Graciela +1 more
openaire +3 more sources
An extension to the planar Markus–Yamabe Jacobian conjecture
Electronic Journal of Qualitative Theory of Differential Equations, 2021 We extend the planar Markus–Yamabe Jacobian conjecture to differential systems having Jacobian matrix with eigenvalues with negative or zero real parts.
Marco Sabatini
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Per-unit Scheme for Integrated Solution of Hybrid Power-water Flow Problem
Journal of Modern Power Systems and Clean Energy, 2023 When applying the widely-used Newton-Raphson (N-R) method to the integrated solution of the hybrid power-water flow problem of the power-water integrated energy system (PW-IES), it is found that there are numerical differences among Jacobian elements ...
Xia Zhao, Hong Tan, Luo Wang, Mingyi Sun
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A graph-theoretic approach to sparse matrix inversion for implicit differential algebraic equations [PDF]
Mechanical Sciences, 2013 In this paper, we propose an efficient numerical scheme to compute sparse matrix inversions for Implicit Differential Algebraic Equations of large-scale nonlinear mechanical systems.
H. Yoshimura
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