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Consider the amplitude modulated (AM) signal cos ω + 2 cos ω cos ω For demodulating the signal using envelope detector, the minimum value of A should be

Answer» AC cos ωct + 2 cos ωmt cos ωct AC cosωct for envelope detection μ < 1 &Rightarrow; < 1 &Rightarrow; Ac should be at least-2.


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