L
Li Qiu
Researcher at Hong Kong University of Science and Technology
Publications - 244
Citations - 4717
Li Qiu is an academic researcher from Hong Kong University of Science and Technology. The author has contributed to research in topics: Robust control & Linear system. The author has an hindex of 34, co-authored 239 publications receiving 4404 citations. Previous affiliations of Li Qiu include South China University of Technology & Peking University.
Papers
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A formula for computation of the real stability radius
TL;DR: This paper presents a readily computable formula for the real stability radius with respect to an arbitrary stability region in the complex plane.
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Reconstruction of continuous-time systems from their non-uniformly sampled discrete-time systems
Feng Ding,Li Qiu,Tongwen Chen +2 more
TL;DR: Some related issues of non-uniformly sampled systems, including model derivation, controllability and observability, computation of single-rate models with different sampling periods, reconstruction of continuous-time systems, and parameter identification are discussed.
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H ∞ design of general multirate sampled-data control systems
Tongwen Chen,Li Qiu,Li Qiu +2 more
TL;DR: A new and natural framework is proposed using nest operators and nest algebras to tackle causality constraints and explicit solutions to the H ∞ and H 2 multirate control problems in the frequency domain are developed.
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Feedback Stabilization of Discrete-Time Networked Systems Over Fading Channels
Nan Xiao,Lihua Xie,Li Qiu +2 more
TL;DR: This paper addresses the mean square stabilization problem for discrete-time networked control systems over fading channels and identifies the channel feedback as a key component in eliminating the limitation on stabilization induced by the nonminimum phase zeros and high relative degree of the plant.
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Limitations on maximal tracking accuracy
Jie Chen,Li Qiu,Onur Toker +2 more
TL;DR: It is shown that plant nonminimum phase zeros have a negative effect on a feedback system's ability to reduce the tracking error, and that in a multivariable system this effect results in a way depending on not only the zero locations, but also the zero directions.