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SUMMARY:Robust stability analysis of linear time-varying feedback systems 
 - Sei Zhen Khong (University of Melbourne)
DTSTART:20110916T130000Z
DTEND:20110916T140000Z
UID:TALK32605@talks.cam.ac.uk
CONTACT:Dr Ioannis Lestas
DESCRIPTION:The robust stability of uncertain linear feedback\ninterconnec
 tions is\nstudied within an operator-theoretic setting via a time-varying\
 ngeneralisation of the nu-gap metric. It is also shown that the use of\nin
 tegral-quadratic-constraints to encapsulate the uncertainty can reduce\nco
 nservatism. This involves establishing the path-connectedness of\nsufficie
 ntly small nu-gap balls. As an application of the theoretical\ndevelopment
 s\, a sampled-data approximation problem is rigorously\nformulated and opt
 imally solved. A linear-fractional characterisation of\nthe nu-gap metric 
 plays a central role throughout.
LOCATION:Cambridge University Engineering Department\, LR6
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