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Absolute stability of NLTV discrete systems

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2 Author(s)
Ramarajan, S. ; Indian Institute of Science, Bangalore, India ; Rao, S.

A frequency domain stability criterion for nonlinear time-varying (NLTV) discrete systems with a separable time-varying nonlinearity is derived using the Lyapunov approach. It is shown that Szegö's [1] criterion for nonlinear time-invariant discrete systems and Chen's [4] criterion for linear time-varying discrete systems can be obtained as special cases of the criterion derived here.

Published in:

Automatic Control, IEEE Transactions on  (Volume:17 ,  Issue: 1 )