Highly Efficient Identification Methods for Dual-Rate Hammerstein Systems
Highly Efficient Identification Methods for Dual-Rate Hammerstein Systems
复制标题
双速率 Hammerstein 系统的高效识别方法
DOI:
10.1109/tcst.2014.2387216
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发表时间:
2015-01
影响因子:
4.8
通讯作者:
Ding Feng
中科院分区:
文献类型:
--
作者:
Wang Dong-Qing;Liu Hua-Bo;Ding Feng
This brief concerns parameter identification for a dual-rate Hammerstein CARMA system. By combining the polynomial transformation technique and the hierarchical identification principle, this brief transforms a dual-rate nonlinear Hammerstein CARMA system into a bilinear dual-rate identification model, and presents a hierarchical least squares algorithm to estimate the parameter vectors of the bilinear dual-rate identification model. Moreover, by using the key term separation principle, this brief transforms the dual-rate nonlinear Hammerstein CARMA system into a linear dual-rate identification model, and presents a key term separation based least squares algorithm to estimate the parameter vector of the linear dual-rate identification model. The two proposed methods possess higher computational efficiency compared with the previous over-parameterization least squares method in which many redundant parameters need estimating. The simulation results show the effectiveness of the two proposed algorithms.
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影响因子:
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期刊:
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DOI:
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