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Fast nonlinear model order reduction via associated transforms of high-order Volterra transfer functions

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5 Author(s)
Yang Zhang ; Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong ; Haotian Liu ; Qing Wang ; Neric Fong
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We present a new and fast way of computing the projection matrices serving high-order Volterra transfer functions in the context of (weakly and strongly) nonlinear model order reduction. The novelty is to perform, for the first time, the association of multivariate (Laplace) variables in high-order multiple-input multiple-output (MIMO) transfer functions to generate the standard single-s transfer functions. The consequence is obvious: instead of finding projection subspaces about every si, only that about a singles is required. This translates into drastic saving in computation and memory, and much more compact reduced-order nonlinear models, without compromising any accuracy.

Published in:

Design Automation Conference (DAC), 2012 49th ACM/EDAC/IEEE

Date of Conference:

3-7 June 2012