Performance analysis of N4SID state-space system identification

被引:0
|
作者
Flint, TW [1 ]
Vaccaro, RJ [1 ]
机构
[1] Univ Rhode Isl, Dept Elect Engn, Kingston, RI 02881 USA
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中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper describes a statistical performance analysis method for multi-variate subspace system identification algorithms. The analysis is based on a recently developed perturbation expansion of the singular value decomposition. We demonstrate the technique by analyzing the numerical state-space subspace system identification algorithm N4SID. An expression for the variance of the identified eigenvalues based on a finite record of input/output data is derived and verified using MATLAB simulations.
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页码:2766 / 2767
页数:2
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