Premium
Precise Tracking for Continuous‐Time Non‐Minimum Phase Systems
Author(s) -
Zhang Youling,
Zhu Qiuguo,
Xiong Rong
Publication year - 2019
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.1866
Subject(s) - inversion (geology) , control theory (sociology) , trajectory , tracking (education) , minimum phase , interval (graph theory) , computer science , phase (matter) , mathematics , physics , artificial intelligence , control (management) , psychology , pedagogy , quantum mechanics , paleontology , structural basin , astronomy , combinatorics , biology
Stable inversion based precise tracking for continuous‐time square or nonsquare non‐minimum phase systems is studied. However, high precision trajectory tracking of non‐minimum phase systems can be obtained by the stable inversion method but requiring large enough extended time interval. In order to solve this problem of large extended time restriction, a novel approach to precise trajectory tracking of non‐minimum phase systems is proposed, it is called the improved stable inversion (ISI) method, using an optimal integration of the pre‐actuation and the optimal state transition (OST) techniques. The ISI method can obtain precise trajectory tracking with a smaller extended time interval as compared to the stable inversion method. The proposed method achieves better validation through numerical simulations for the non‐minimum phase system.