Fourier

Coefficients of the Fourier Series expansion of physical signals having finite power

Coefficients of the Fourier Series expansion of physical signals having finite power
  1. Can power signal be expanded in Fourier series?
  2. What is Fourier series expansion of signals?
  3. Which one Cannot be expanded as Fourier series?

Can power signal be expanded in Fourier series?

According to the Fourier series expansion formula, periodic signals are expanded in terms of cosine and sine functions. Hence, the cosine terms represent the even part of and the sine terms represent the odd part of .

What is Fourier series expansion of signals?

Fourier series is an expansion of a periodic signal in terms of the summing of an infinite number of sinusoids or complex exponentials, as any periodic signal of practical nature can be approximated by adding up sinusoids with the properly chosen frequencies, amplitudes, and initial phases.

Which one Cannot be expanded as Fourier series?

Since x2(t) is not periodic, so it cannot be expanded in Fourier series.

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