Single sideband (SSB) modulation encodes information in one of the sidebands of a modulated signal. It is generated by multiplying a carrier signal with a modulating signal containing the information to be transmitted. This removes one of the redundant sidebands, improving spectrum efficiency compared to amplitude modulation. Vestigial sideband (VSB) modulation is similar but retains a fraction of one sideband, allowing for simpler receiver filtering while maintaining higher bandwidth efficiency than double sideband modulation.

1. Single Sidebands SSB
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3. Time-Domain Representation
of SSB Signals
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4. H.W.
Derivation
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5. 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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7. 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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12. VSB
Vestigial Sideband
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The BW of VSB signal is 25%
to 33% higher than that of
SSB signal
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15. 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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16. Example
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