Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 1 (Q.No. 17)

Communication Systems

17.

Which of the following cannot be the Fourier series expansion of a periodic signal?

x(t) = 2 cos t + 3 cos 3t

x(t) = 2 cos pt + 7 cos t

x(t) = cos t + 0.5

x(t) = 2 cos 1.5pt + sin 3.5 pt

Answer: Option

Explanation:

x(t) = cos t + 0.5

not satisfies the Dirichlet condition.

The integration of constant term is ∞.

Discussion:

11 comments Page 2 of 2.

Saurabh kumar said: 5 years ago

I think option B is right.

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