1.

The range of value "" for which system will be stable. If impulse response of DT system is = ∪[]

Answer» Given n(n) = an ∪(n) ROC is |z| > a open the mod function when z > 0 &Rightarrow; z > a z < 0 &Rightarrow; - z > a or &Rightarrow; z < - a For stability ROC must include unit circle, so |z| > a or - a < z < + a or -1 < a < + 1.


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