Using appropriate Fourier-transform theorems and pairs, express the spectrum Y(f) of y(t) = x(t) cos ( 0
Question:
Using appropriate Fourier-transform theorems and pairs, express the spectrum Y(f) of
y(t) = x(t) cos (ω0t) + x̂(t) sin (ω0t)
in terms of the spectrum X(f) of x(t), where X(f) is low pass with bandwidth
B < f0 = ω0 / 2π
Sketch Y(f) for a typical X(f).
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The Fourier transform is Noting that 12 1 sgn f f 0 u f 0 f and 12 1 sgn f f 0 u f f 0 thi...View the full answer
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Related Book For
Principles of Communications Systems, Modulation and Noise
ISBN: 978-8126556793
7th edition
Authors: Rodger E. Ziemer, William H. Tranter
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