Modified Subspace Identification for Periodically Non-uniformly Sampled Systems by Using the Lifting Technique

被引：85

作者：

Ding, Jie ^{[1
]}

Lin, Jinxing ^{[1
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Sch Automat, Nanjing 210032, Jiangsu, Peoples R China

来源：

CIRCUITS SYSTEMS AND SIGNAL PROCESSING | 2014年 / 33卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Parameter estimation; Subspace identification; Casuality constraint; Lifting technique; Non-uniform sampling; PARAMETER-ESTIMATION ALGORITHM; LEAST-SQUARES ESTIMATION; ITERATIVE IDENTIFICATION;

D O I：

10.1007/s00034-013-9704-2

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper studies identification problems for a class of multirate systems-non-uniformly sampled systems. The lifting technique is employed to handle the non-uniformly sampled input and output data, a lifted state-space model is derived to represent the non-uniform discrete-time systems, and a novel subspace identification method is proposed to deal with the casuality constraints in the lifted model. Simulation results show that the algorithm is effective.

引用

页码：1439 / 1449

页数：11

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