RESEARCH PAPERS: Technical Papers

Distributed System Identification: A Green’s Function Approach

[+] Author and Article Information
G. R. Spalding

Engineering Dept., Wright State University, Dayton, Ohio

J. Dyn. Sys., Meas., Control 98(2), 146-151 (Jun 01, 1976) (6 pages) doi:10.1115/1.3427001 History: Received September 10, 1975; Online July 13, 2010


A method is presented for identifying linear distributed parameter systems. Emphasis is placed on identification as a function of spatial coordinates by considering time-transformed, noise-free systems. Measurements of system response are combined with the Green’s function method of analysis to obtain integral equations that can be solved for unknown spatial operators or coefficients. A discrete form of the theory is developed, utilizing Chebyshev polynomials. This allows prior estimates to be used to determine the number and location of spatial measurements. Where estimates are of sufficient order, the modeling process is exact.

Copyright © 1976 by ASME
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