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Stability and absence of overflow oscillations for 2-D discrete-time systems

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2 Author(s)
Chengshan Xiao ; Dept. of Electr. Eng., Sydney Univ., NSW, Australia ; Hill, D.J.

It is shown that a 2-D linear time-invariant discrete-time system could be bounded-input bounded-output (BIBO) unstable even if the 2-D system, which is implemented by finite word length, is free of overflow oscillations with zero input, according to a previous criterion for the absence of overflow oscillations in 2-D discrete-time systems. An improved criterion is presented to ensure both stability properties

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Signal Processing, IEEE Transactions on  (Volume:44 ,  Issue: 8 )