On the precision of the plant estimates in some subspace identification methods
On the precision of the plant estimates in some subspace identification methods
复制标题
几种子空间辨识方法中植物估计的精度研究
DOI:
10.3182/20140824-6-za-1003.02167
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
K. Ikeda
中科院分区:
文献类型:
--
作者:
K. Ikeda
Abstract Explicit formulae of dominant parts of the estimation errors of plant A matrix in PI-MOESP, PO-MOESP, and one of N4SID methods are derived based on a proposing lemma on perturbations to the singular subspaces. By considereing a gap between the true and a perturbed singular subspaces instead of the perturbation on the subspace, a simple formulae of the estimation error is obtained. The order of the subordinate terms are also analysed.