Abstract
A novel low-order modeling of decentralized linear observer-based tracker is presented in this paper for a class of unknown interconnected large-scale sampled-data nonlinear systems with closed-loop decoupling property. The appropriate (low-)order decentralized linear observer is determined by the off-line observer/Kalman filter identification (OKID) methodology and has been further improved based on the digital-redesign approach. Then the decentralized digital-redesign tracker with the high gain property is proposed, so that the closed-loop system has the decoupling property. The proposed approach is quite simple and effective for the complicate interconnected large-scale sampled-data system with known or unknown system.
Published Version
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