Discussion
A vestigial sideband signal is demodulated in a television receiver by
Answer: D
Because the carrier is deliberately retained, a simple envelope detector works, which is what kept television receivers affordable for decades. The vestigial shaping is arranged so that the sum of the wanted sideband and the vestige gives a flat overall response. Costas and squaring loops are suppressed-carrier techniques. And a limiter with a discriminator is the FM sound detector, which sits in the same receiver but on a different carrier.
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