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Single Sidebands SSB




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    2012
Time-Domain Representation
of SSB Signals




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H.W.
Derivation




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Example: Tone Modulation SSB
Find φSSB (t) for a simple case of a tone modulation, that is, when the
modulating signal is a sinusoidal m(t) = cos (ωm t)




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Generation of SSB signals




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if A, the carrier amplitude, is large enough, m(t) can be
recovered by envelop detection




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VSB
     Vestigial Sideband




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The BW of VSB signal is 25%
to 33% higher than that of
SSB signal




                              14
The signal e(t) is passed through the low-pass equalizer filter of transfer function
Ho(t)




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The output of the equalizer filter is required to be m(t). Hence, the output signal
spectrum is given by




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Example




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Single sidebands ssb lathi