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Journals and Conferences
A new online method to optimize the free parameter in adaptive Laguerre-based filters is presented. It is based on the minimization of a criterion that is equivalent to an upper bound for the quadratic approximation error. The proposed technique presents a fast convergence and a good robustness.
We present an efficient model reduction procedure based on the Laguerre description of the system to be approximated. Using a one-order operator defined in the Laplace domain we construct a pencil of functions and formulate the problem as the minimization of the L/sub /spl infin///sup 2/(/spl Ropf//sup +/) criterion. The use of a weight function in the… (More)
Discrete-time Laguerre series are a well-known and efficient tool in system identification and modeling. This paper presents a simple solution for stable and accurate order reduction of systems described by a Laguerre model.
We report on our investigations to choose a free parameter to minimize the error energy when approximating a given signal with orthogonal basis functions. This method requires limited knowledge of the signal to be approximated and has a low computational cost.
An efficient method for evaluating inner products of repeated integrals and derivatives of a function described by a Laguerre model is presented. An immediate and promising application is model reduction of infinite-dimensional transfer functions. r 2004 Elsevier B.V. All rights reserved.
Based on least-squares approximation of the rectangular pulse (Vilbeacute , 1999) by exponential functions, this brief presents an alternative method for performing numerical inversion of the Laplace transform. It compares favourably with the celebrated Vlach's method
This letter focuses on the a posteriori correction of Volterra–Laguerre models in order to meet specific static or dynamic requirements. The authors set a general theoretical framework and provide an illustrative example.
The paper studies frequency domain characterization and properties of autocorrelation discrete time functions. Such functions may be useful in the design and synthesis of signaling waveforms with prescribed autocorrelation functions.