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

被引：82
|
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
收藏
页码：1439 / 1449
页数：11
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