Parameter estimation for nonlinear time-delay systems with noisy output measurements
Parameter estimation for nonlinear time-delay systems with noisy output measurements
复制标题
具有噪声输出测量的非线性时滞系统的参数估计
DOI:
10.1016/j.automatica.2015.06.028
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发表时间:
2015-10
期刊:
影响因子:
6.4
通讯作者:
Teo Kok Lay
中科院分区:
文献类型:
--
作者:
Lin Qun;Loxton Ryan;Xu Chao;Teo Kok Lay
This paper considers the problem of using noisy output data to estimate unknown time-delays and unknown system parameters in a general nonlinear time-delay system. We formulate the problem as a dynamic optimization problem in which the unknown quantities are decision variables to be chosen optimally, with the cost function penalizing the mean and variance of the least-squares error between actual and predicted system output. Since the time-delays and system parameters influence the cost function implicitly through the governing time-delay system, the cost function’s gradient–which is required to solve the problem using gradient-based optimization techniques–cannot be computed analytically using standard differentiation rules. We instead develop two computational methods for evaluating this gradient: one involves solving an auxiliary time-delay system forward in time; the other involves solving an auxiliary time-advance system backward in time. On this basis, we propose an efficient optimization algorithm for determining optimal estimates for the time-delays and system parameters. We conclude the paper by examining the performance of this algorithm on a dynamic model of a continuously-stirred tank reactor.
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影响因子:
3.9
作者:
Y. Orlov;L. Belkoura;J. Richard;M. Dambrine
通讯作者:
Y. Orlov;L. Belkoura;J. Richard;M. Dambrine
DOI:
10.1016/j.automatica.2013.02.020
发表时间:
2013-06
期刊:
Autom.
影响因子:
--
作者:
G. Zheng;J. Barbot;D. Boutat
通讯作者:
G. Zheng;J. Barbot;D. Boutat
DOI:
10.1587/transinf.e96.d.1867
发表时间:
2009-10
期刊:
2009 7th Asian Control Conference
影响因子:
--
作者:
J. Park;Soohee Han;Bokyu Kwon
通讯作者:
J. Park;Soohee Han;Bokyu Kwon
影响因子:
6.8
作者:
Denis-Vidal, L;Jauberthie, C;Joly-Blanchard, G
通讯作者:
Joly-Blanchard, G
DOI:
10.1109/tac.2002.801202
发表时间:
2002-11
期刊:
IEEE Trans. Autom. Control.
影响因子:
--
作者:
Y. Orlov;L. Belkoura;J. Richard;M. Dambrine
通讯作者:
Y. Orlov;L. Belkoura;J. Richard;M. Dambrine