Factorization of multipliers in passivity and IQC analysis

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  • J. Carrasco
    University of Manchester
  • W.P. Heath
    University of Manchester
  • A. Lanzon
    University of Manchester
Multipliers are often used to find conditions for the absolute stability of Lur’e systems. They can be used either in conjunction with passivity theory or within the more recent framework of integral quadratic constraints (IQCs). We compare the use of multipliers in both approaches. Passivity theory requires that the multipliers have a canonical factorization and it has been suggested in the literature that this represents an advantage of the IQC theory. We consider sufficient conditions on the nonlinearity class for the associated multipliers to have a canonical factorization.
Original languageUnknown
Pages (from-to)909-916
Number of pages8
JournalAutomatica
Volume48
Issue number5
Early online date15 Mar 2012
DOIs
Publication statusPublished - 1 May 2012
Externally publishedYes
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