Adaptive filter for a linear time-varying system with a high-order estimator

作     者：Hidaka, K Ohmori, H Sano, A 

作者机构：Tokyo Metropolitan Coll Aeronaut Engn Dept Elect Engn Arakawa Ku Tokyo 1160003 Japan Keio Univ Dept Syst Design Engn Kohoku Ku Yokohama Kanagawa 2238522 Japan 

出 版 物：《IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS》 (IEE Proc Control Theory Appl)

年 卷 期：2000年第147卷第4期

页      面：395-402页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0804[工学-仪器科学与技术] 0811[工学-控制科学与工程] 

主　　题：Sufficient conditions higher-order Holographic optical components adaptive filters Linear time-varying system control parameter 

摘      要：In the paper, a novel adaptive filter design for a linear time-varying system is proposed. The authors introduce a robust height order estimation (HOE) to which they apply the HOE for a linear time-invariant (LTI) system by using sigma-modification and show the sufficient condition for stability. Since the robust HOE can estimate the differential of any degree, ((rho))(t) from a parameter (t) directly, the number of control parameters does not increase, and all parameter vectors ((rho))(t) can converge to an unknown vector theta((rho))(t) in the case of (t) - theta(t) = 0. Furthermore, the proposed algorithm does not require the structure of unknown parameters. Finally, the system is compared to the conventional method by numerical simulation and the effectiveness is demonstrated.