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Chap3_Fseries

# Chap3_Fseries - 3 1 4 For the signals given in Problem 3c...

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Fourier Series 1. For the following signal: a) Find the Fourier series b) Plot the spectra versus frequency, ϖ ϖ = n 0 . 2. Repeat problem 1 for the following signal: 3. Compute the Fourier series for the following signals: a) x t t t ( ) cos( / ) cos( / ) = + + + - 2 4 50 2 12 100 3 π π b) x t t t ( ) cos( ( ) )cos( ) = 4 2 1000 2 750000 π π c) d) time x(t) -1 -4 -3 3 2 -6 -7 -2 5 6 8 9 2 cos(t) -10 10 x(t) time 2 1 2 1 4 1 2

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Unformatted text preview: 3 1 4. For the signals given in Problem 3c) and 3 d), use Matlab to plot the truncated Fourier series for N = 3, N = 10 and N= 40. (Use subplot to save paper). 5. Find the Fourier series for the following signal. Also, sketch the approximation if a large number of terms are kept in the series (say N=30). t 0 3 4 6 -2 9 -3 -6 … … x(t) 3 1...
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Chap3_Fseries - 3 1 4 For the signals given in Problem 3c...

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