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Unformatted text preview: (c) Assume that we added another signal component so that y ( t ) = x ( t )2sin(2 π √ 3 tπ/ 2). Please sketch magnitude and phase plot of y ( t ) in frequency domain. Is y ( t ) periodic signal? If so, please determine period. Otherwise, please explain the reasons. 3. (25 Points) Consider the periodic waveform in time domain in Figure 2 Figure 2 A Periodic Waveform in Time Domain (a) Determine DC component of the signal x ( t ) (b) Determine Fourier series coeﬃcients of x ( t ) 4. (25 Points) Determine the Fourier series representation of the periodic signal provided in Figure 3 Figure 3 A Periodic Waveform in Time Domain (a) Determine Fourier series coeﬃcients of x ( t ) (b) Please simplify the Fourier series expression by use of inverse Euler equation, the Fourier series will be represented in terms of trigonometric functions. 2...
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 Spring '08
 SHIN
 Digital Signal Processing, Fourier Series, Periodic function, #, Dr. YongJune Shin

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