Determine the fundamental period of the following two signals.

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written 9.2 years ago by

teamques10 ★ 70k

• modified 7.0 years ago

$(i) x(t) = 14 + 40\cos (60πt)\ (ii) x[n] = \cos^2[\dfrac \pi an]$

Mumbai University > EXTC > Sem 4 > Signals and Systems

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Year : MAY 2015

signals and systems

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written 9.2 years ago by

teamques10 ★ 70k

• modified 9.2 years ago

$$(i) x(t) = 14 + 40 \cos (60πt)$$

To determine the fundamental period of x(t)

First, check whether the signal is periodic or not

Here, 14 is the DC shift added to the signal $x_1(t) = 40 \cos 60πt$

The given signal is a cosine signal and therefore it is …

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