IEEE Transactions on Automatic Control, Vol.65, No.1, 450-452, 2020
A Direct Proof of the Equivalence of Side Conditions for Strictly Positive Real Matrix Transfer Functions
This brief note proves in a direct way that two different side conditions, which have been used in the literature to characterize strictly positive real matrix transfer functions in the frequency domain, are equivalent.
Keywords:
Control systems analysis
; high frequency condition
; input-output methods
; multivariable linear systems
; passivity
; strictly positive real systems
