The AM signal s (t) = Ac [1 + k a m (t)] cos (2?? c t)
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The AM signal s (t) = Ac [1 + ka m (t)] cos (2??ct) is applied to the system in Figure. Assuming that | ka m (t) | ? W and that the carrier frequency ?c > 2W show that m (t) can be obtained from the square-rooter output v3 (t).
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The squarer output is v t A 1k mt cos 21ft 12kmt m t1cos4ft The amplitude spectrum ...View the full answer
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