Assume that a message signal is given by m(t) = 4 cos(2f m t) + cos(4f m
Question:
Assume that a message signal is given by
m(t) = 4 cos(2πfmt) + cos(4πfmt)
Calculate an expression for
xc(t) = 1/2 Acm(t) cos(2πfmt) ± 1/2 Acm̂ (t) sin (2πfct)
for Ac = 10. Show, by sketching the spectra, that the result is upper-side band or lower-side band SSB depending upon the choice of the algebraic sign.
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With mt 4 cos2f m t cos4f m t we have mt 4 sin2f m t sin4f m t There...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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