Robust control in gap metric

Li Qiu

doi:10.1007/978-1-4471-5102-9_165-1

Robust control in gap metric

Li Qiu

The Hong Kong University of Science and Technology

Research output: Chapter in Book/Conference Proceeding/Report › Book Chapter › peer-review

Abstract

Robust control needs to start with a model of system uncertainty. What is a good uncertainty model? First it needs to capture the possible system perturbations and uncertainties. Second it needs to be mathematically tractable. The gap metric was introduced by Zames and El-Sakkary for this purpose. Its study climaxed in an award-winning paper by Georgiou and Smith. A modified gap, called the ν-gap, was later discovered by Vinnicombe and was shown to have advantages. With these metrics in hand, robust stabilization issues can be nicely addressed.

Original language	English
Title of host publication	Encyclopedia of Systems and Control
Publisher	Springer
Pages	45839
ISBN (Print)	9781447151029
DOIs	https://doi.org/10.1007/978-1-4471-5102-9_165-1
Publication status	Published - 2014

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Robust control in gap metric

Abstract

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