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New Simple Filtered-x Algorithm for Parallel Hammerstein Systems
Tomohiro Ohno,Akira Sano,Hiromitsu Ohmori 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
A new nonlinear filtered-x algorithm is proposed for adaptive feed forward compensation for parallel Ham-merstein systems, which has many applications such as nonlinear active no is econtrol and predistortion for nonlinear high power amplifiers. To attenuate the compensation error, a virtual error and prediction error are introduced and forced into zero by adjusting three nonlinear adaptive filter sin a non-line manner. It is shown that the convergence of the compen-sation error to zero can be assured by forcing the prediction error and virtual error to zero separately. The proposed method can adjust the adaptive feed forward controller by using the newly introduced virtual error, unlike the or dinary nonlinear filtered-x algorithm using the compensation error directly. Further more, the PE property of the reference signal is not needed, which is agreat advantage of the proposed direct approach. Its effectiveness is examined and clarified incomparison with an ordinary nonlinear filtered-x algorithm in numerical simulations.
Alkoxysilane Compound Coating on Mortar Surfaces and Evaluation of Its Anti-biofilm Properties
Hideyuki Kanematsu,Dana M. Barry,Akiko Ogawa,Takeshi Kogo,Risa Kawai,Hidekazu Miura,Nobumitsu Hirai,Akihiro Maegawa,Yuki Murakami,Kaori Omata,Katsuhiko Tsunasima,Katsuhiko Sano,Akira Suzuki,Yoshiaki S 한국표면공학회 2023 한국표면공학회 학술발표회 초록집 Vol.2023 No.11-1