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Question: a discretetime system can be 1 static or dynamic 2...

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A discrete-time system can be (1) Static or dynamic (2) Linear or nonlinear (3) Time invariant or time varying (4) Causal or non-causal (5) Stable or unstable Examine the following systems with respect to th.e properties above (a) y(n)cos[(n)] (b) y(n)- X (c) y (n)=x(n) cos(00n) (d) y(n) x- 2) (e) y(n) Trun[x(n)], where Trun[x(n)] denotes the intege by truncation () y(n) -Roundx(n)], where Round[x(n)] denotes the i tained by rounding Remark: The systems in parts (e) and (f) are quantizers that perform truncation and rounding respectively (g) y(n) -Ix(n) (h) y(n)= r(n)n(n)

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