65 research outputs found
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Stability of solutions of linear difference equations with periodic coefficients
This paper represents the last technical contribution of Professor Patrick Parks before his untimely death in February 1995. The remaining authors of the paper, which was subsequently completed, wish to dedicate the article to Patrick. A frequency criterion for the stability of solutions of linear difference equations with periodic coefficients is established. The stability criterion is based on a consideration of the behaviour of a frequency hodograph with respect to the origin of coordinates in the complex plane. The formulation of this criterion does not depend on the order of the difference equation
Robustness analysis of polynomials with linearly correlated uncertain coefficients in lp-normed balls
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Neural networks for identification of nonlinear systems under random piecewise polynomial disturbances
The problem of identification of a nonlinear dynamic system is considered. A two-layer neural network is used for the solution of the problem. Systems disturbed with unmeasurable noise are considered, although it is known that the disturbance is a random piecewise polynomial process. Absorption polynomials and nonquadratic loss functions are used to reduce the effect of this disturbance on the estimates of the optimal memory of the neural-network model
Estimation Under Unknown Correlation: Covariance Intersection Revisited
[6] B. R. Barmish and R. Tempo, “On the spectral set for a family of polynomials,
Robust performance margins and robust controller design for systems with uncertain parameters
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