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科学通报(英文版) 1999
A necessary and sufficient condition on robust SPR stabilizability for low degree systems
Keywords: robustness analysis,positive realness (PR),strictly positive realness (SPR),robust stabilization Abstract: For low degree systems (n 3), it is verified that all convex combination ofa (s) andb (s) keeping Hurwitzness is a necessary and sufficient condition for the existence ofc (s) such that bothc(s)/a(s) andc(s)/b(s) are SPR.
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