Discussion
The phasing method of SSB generation cancels the unwanted sideband by
Answer: D
Two balanced modulators are fed with carrier and message each split into quadrature components, and summing their outputs cancels one sideband while reinforcing the other. It avoids the sharp filter but demands an accurate ninety-degree network across the whole message band, which is the hard part. Filtering at the operating frequency is the problem the method sidesteps. Squaring and limiting are unrelated operations that would destroy the signal.
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