کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8901673 1631946 2019 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Model recovery for Hammerstein systems using the hierarchical orthogonal matching pursuit method
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Model recovery for Hammerstein systems using the hierarchical orthogonal matching pursuit method
چکیده انگلیسی
Most papers concentrate on the parameter identification of Hammerstein systems with known orders. This paper, motivated by the recent developments in sparse approximations, investigates the combined parameter and order determination of Hammerstein systems. The methodology used relies on greedy schemes-the orthogonal matching pursuit (OMP) algorithm in the compressive sensor (CS) theory. In particular, the first step recasts a bilinear Hammerstein system into two fictitious pseudo-regressive sub-systems which respectively contain the parameters of the nonlinear part or the parameters of the linear part by the hierarchical identification principle. The second step adopts a hierarchical orthogonal matching pursuit (H-OMP) selection procedure to interactively select the parameters and orders of the two sub-systems under the frame of the compressive sensor. Finally, the proposed algorithm is tested on a simulation example.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 345, 1 January 2019, Pages 135-145
نویسندگان
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