Results 31 to 40 of about 1,023,458 (144)
Exact analytical soliton solutions of $N$-component coupled nonlinear Schrödinger equations with arbitrary nonlinear parameters [PDF]
arXiv, 2022 Exact analytical soliton solutions play an important role in soliton fields. Soliton solutions were obtained with some special constraints on the nonlinear parameters in nonlinear coupled systems, but they usually do not holds in real physical systems.
arxiv
IEEE Access, 2019 This paper presents a practical control strategy for motion control of a pneumatic muscle actuated the system. Pneumatic artificial muscle (PAM) exhibits strong nonlinear characteristics which are difficult to be modeled precisely, and these ...
T. F. Tang +3 more
doaj +1 more source
A Robust State Estimator for T-S Fuzzy System
IEEE Access, 2020 In this paper, a robust filter is derived to estimate the state of a nonlinear system which is described by T-S fuzzy model. Firstly, this paper studies a robust state estimation algorithm based on the relationship between Kalman filter and regularized ...
Ziqiang Li, Jing Wang, Huabo Liu
doaj +1 more source
Making Nonlinear Systems Negative Imaginary via State Feedback [PDF]
arXiv, 2022 This paper provides a state feedback stabilization approach for nonlinear systems of relative degree less than or equal to two by rendering them nonlinear negative imaginary (NI) systems. Conditions are provided under which a nonlinear system can be made a nonlinear NI system or a nonlinear output strictly negative imaginary (OSNI) system.
arxiv
IEEE Access, 2019 This paper develops a new adaptive control scheme for a class of incommensurate fractional order nonlinear systems with external disturbances and input dead-zone.
Changhui Wang, Mei Liang, Yongsheng Chai
doaj +1 more source
Robust Output Feedback Consensus for Networked Heterogeneous Nonlinear Negative-Imaginary Systems [PDF]
, 2020 This paper provides a control protocol for the robust output feedback consensus of networked heterogeneous nonlinear negative-imaginary (NI) systems. Heterogeneous nonlinear output strictly negative-imaginary (OSNI) controllers are applied in positive feedback according to the network topology to achieve output feedback consensus. The main contribution
arxiv +1 more source
IEEE Access, 2022 We consider second order nonlinear systems in control canonical form, where the functional relation between the control variable and the system acceleration is nonlinear, uncertain and discontinuous.
Denis Vasko, Jan Kardos, Eva Miklovicova
doaj +1 more source
Robust Output Feedback Consensus for Networked Identical Nonlinear Negative-Imaginary Systems [PDF]
arXiv, 2020 A robust output feedback consensus problem for networked identical nonlinear negative-imaginary (NI) systems is investigated in this paper. Output consensus is achieved by applying identical linear output strictly negative-imaginary (OSNI) controllers to all the nonlinear NI plants in positive feedback through the network topology. First, we extend the
arxiv
Nonlinear gauge transformation for a class of Schroedinger equations containing complex nonlinearities [PDF]
Rep. Math. Phys. 46, 113 (2000), 2002 We consider a wide class of nonlinear canonical quantum systems described by a one-particle Schroedinger equation containing a complex nonlinearity. We introduce a nonlinear unitary transformation which permits us to linearize the continuity equation.
arxiv +1 more source
Hamiltonian form of extended cubic-quintic nonlinear Schrödinger equation in a nonlinear Klein-Gordon model [PDF]
arXiv, 2022 We derive an extended cubic-quintic nonlinear Schr\"{o}dinger equation with Hamiltonian structure in a nonlinear Klein-Gordon model with cubic-quintic nonlinearity. We use the nonlinear dispersion relation to properly take into account the input of high-order nonlinear effects in the Hamiltonian perturbation approach to nonlinear modulation.
arxiv