Noncausal linear periodically time-varying scaling for discrete-time systems
نویسندگان
چکیده
A novel technique called noncausal linear periodically time-varying (LPTV) scaling was introduced recently, and it was shown that even static noncausal LPTV scaling has an ability of inducing frequency-dependent scaling if it is interpreted in the context of the conventional scaling approach. Motivated by this preceding study of ours, this paper studies to exploit this attractive property and demonstrates with numerical examples that it leads to quite effective robust stability analysis. The idea of noncausal LPTV scaling is then applied to the robust stability analysis of continuous-time systems via the Tustin transformation, and the effectiveness of such an approach is again demonstrated with a numerical example.
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