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LMIs in Control/Click here to continue/LMIs in system and stability Theory/Conic Sector Region Stability via the Dilation Lemma
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Definition
Consider . The matrix is -stable if and only if there exists , where , such that
,
or equivalent
,
where is the Kroenecker product,
The eigenvalues of a -stable matrix lie within the LMI region , which is defined as
, where
,
, , and is the complex conjugate of .
Conic Sector Region Stability via the Dilation Lemma
Consider and .
The matrix satisfies , where , if and only if there exist and , where , such that
.
Equivalently, the matrix satisfies if and only if there exist and , and , where , such that
.
Moreover, for every that satisfies
,
and are solutions to
External Links
LMI Methods in Optimal and Robust Control - A course on LMIs in Control by Matthew Peet.
LMIs in Systems and Control Theory - A downloadable book on LMIs by Stephen Boyd.
LMI Properties and Applications in Systems, Stability, and Control Theory - A downloadable book on LMIs by Ryan James Caverly and James Richard Forbes.