Problem DTFT X(e^jw)

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Mario
Mario 2013-4-10
I need help this question.
x(n)=2(0.8)^n[u(n)-u(n-20)]
Sugestions functions?
  1 个评论
Youssef Khmou
Youssef Khmou 2013-4-10
explain exactly what is the issue, what are n x ?

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回答（1 个）

Yao Li
Yao Li 2013-4-10
x(n)=2*((0.8)^n)*(u(n)-u(n-20));
I'm not sure whether it is what you want.

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