Results 341 to 350 of about 3,003,826 (371)

Analytical approximation of nonlinear distortions

IEEE Photonics Technology Letters, 2005
We present an analytical approximation that can describe the signal at the output of a nonlinear fiber, accounting for the distortions induced by the interplay between chromatic dispersion and Kerr nonlinearity. The obtained results agree well with the split-step Fourier method for launch powers as high as 10 dBm.
CIARAMELLA, ERNESTO, FORESTIERI, Enrico
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On representation and approximation of nonlinear systems

Biological Cybernetics, 1978
Many methods for the analysis of nonlinear systems rely on a Volterra system-representation in terms of integral kernels. This paper considers two questions: 1) whether Volterra-like representations are possible for all smooth systems (i.e. analytic operators),-2) which classes of systems can be approximated by some interesting subclasses of the smooth
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Nonlinear Operator Approximation [PDF]

, 1976
This paper is concerned with convergence theorems and error bounds for approximate solutions of nonlinear problems, with particular applications to Urysohn integral equations. It is an abbreviated version of a more extensive projected sequel by P.M. Anselone, J. Davis and P.M. Prenter.
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Discrete Nonlinear Mean Approximation

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1977
AbstractBest approximation on a finite set by a non‐linear family of functions with respect to a general sum “norm”, which includes as a special case the Lp norms (1 < p < ∞), is considered. Properties of best approximations are given. It is shown that a local minimum of the error may not be a global minimum. Computation of best approximations is
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Nonlinear approximation

Acta Numerica, 1998
R. A. DeVore, R. A. DeVore
semanticscholar   +1 more source

Nonlinear Photonics Using Low‐Dimensional Metal‐Halide Perovskites: Recent Advances and Future Challenges

Advanced Materials, 2021
Cong Wang, Junkuo Gao, Han Zhang
exaly  

Fuzzy Approximation-Based Adaptive Backstepping Optimal Control for a Class of Nonlinear Discrete-Time Systems With Dead-Zone

IEEE transactions on fuzzy systems, 2016
Yanjun Liu, Ying Gao, Shaocheng Tong, Yong-ming Li   +3 more
semanticscholar   +1 more source

Approximation-Based Adaptive Fuzzy Tracking Control for a Class of Nonstrict-Feedback Stochastic Nonlinear Time-Delay Systems

IEEE transactions on fuzzy systems, 2015
Huanqing Wang, Xiaoping Liu, Kefu Liu, H. Karimi   +3 more
semanticscholar   +1 more source

Nonlinear Disturbance Observer-Based Control Design for a Robotic Exoskeleton Incorporating Fuzzy Approximation

IEEE transactions on industrial electronics (1982. Print), 2015
Zhijun Li, C. Su, Liangyong Wang, Ziting Chen, T. Chai   +4 more
semanticscholar   +1 more source

Approximation solutions of derivative nonlinear Schrödinger equation with computational applications by variational method

The European Physical Journal Plus, 2015
A. Seadawy
semanticscholar   +1 more source