A periodic signal is given by r(t) = 3 cos(t) + cos (5t 2n - 2 sin (8t + 3
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Sketch both amplitude and phase spectra for the Fourier series of x(t);
If x(t) is now to be sampled, what is the least sampling frequency wamin in order
to avoid any distortion?
Determine the DTFT of this sampled signal æ*(t);
Suppose r*(t) is ready to be truncated for DFT, find the minimum number of
sampling points No to resolve every component if the sampling frequency w, = 20
rad./sec.
Transcribed Image Text:A periodic signal is given by x(t) = 3 cos(t) + cos (5t – 2) – 2 sin (8t + ).
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