Communication Systems

Q1: The Hilbert transform of cos ω1t + sin ω2t is

A sin ω1t + cos ω2t

B sin ω1t - cos ω2t

C cos ω1t - cos ω2t

D - sin ω1t + cos ω2t

ANS:B - sin ω1t - cos ω2t

J[s(t)] = s(t + 90°).



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