Title :
Strictly positive real transfer functions revisited
Author :
Lozano-leal, Rogelio ; Josh, Suresh M.
Author_Institution :
Lab. d´´Autom. de Grenoble, ENSIEG, Saint Martin d´´Heres, France
fDate :
11/1/1990 12:00:00 AM
Abstract :
The two most commonly used definitions of strictly positive real (SPR) transfer functions are reviewed. Contrary to what has been suggested in the literature, it is proven that the least restrictive (weak) definition of the two is clearly related to the Yacubovich-Kalman lemma. The relationship between time- and frequency-domain conditions pertaining to the weak definition of SPR systems is established
Keywords :
control system analysis; frequency-domain analysis; time-domain analysis; transfer functions; Yacubovich-Kalman lemma; frequency-domain; strictly positive real transfer functions; time domain; weak definition; Capacitors; Control theory; Frequency domain analysis; Impedance; Inductors; NASA; Resistors; Transfer functions;
Journal_Title :
Automatic Control, IEEE Transactions on
