Recursive time delay estimation method
作者:
Cs. BÁNYÁSZ,
L. KEVTCZKY,
期刊:
International Journal of Systems Science
(Taylor Available online 1994)
卷期:
Volume 25,
issue 11
页码: 1857-1865
ISSN:0020-7721
年代: 1994
DOI:10.1080/00207729408949316
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
This paper presents a new application of the well known stochastic approximation scheme to the problem of joint estimation of the time delay (dead time) and process parameters, as it occurs in the context of plant identification. In this new application, the unknown delay κ is included along with the other ARMAX parameters in a conventional direct LS recursive estimation scheme. The introduction of the unknown delay requires the evaluation of additional error sensitivity functions. This is done originally by approximating the operator d/dκ with —(I — z-1), where z-1is the shift operator. Three versions of the algorithm are presented, with increasing levels of complexity. The operation of the simplest version is illustrated by simulations
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