Question
Asked Oct 21, 2019
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Determine whether the following signal is energy signal or power signal:

x(t)=e-atu(t) with a>0.

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Expert Answer

Step 1

Energy of a signal is defined as –

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Step 2

Power of a signal is defined as –

2
1
P lim
T2T
dt
t)
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2 1 P lim T2T dt t)

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Step 3

Energy signal – A signal is called energy signal if value of energy is 0 < E < ∞ and value of power is P = 0.

Power s...

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