Approximation and Analysis of Non-linear Equations in a Moment Vector Space

Hideki SATOH

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Summary :

Moment vector equations (MVEs) are presented for use in approximating and analyzing multi-dimensional non-linear discrete- and continuous-time equations. A non-linear equation is expanded into simultaneous equations of generalized moments and then reduced to an MVE of a coefficient matrix and a moment vector. The MVE can be used to analyze the statistical properties, such as the mean, variance, covariance, and power spectrum, of the non-linear equation. Moreover, we can approximately express a combination of non-linear equations by using a combination of MVEs of the equations. Evaluation of the statistical properties of Lorenz equations and of a combination of logistic equations based on the MVE approach showed that MVEs can be used to approximate non-linear equations in statistical measurements.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E89-A No.1 pp.270-279
Publication Date
2006/01/01
Publicized
Online ISSN
1745-1337
DOI
10.1093/ietfec/e89-a.1.270
Type of Manuscript
PAPER
Category
Nonlinear Problems

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