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a Consider a message signal mt containing frequency components at

(a) Consider a message signal m(t) containing frequency components at 100, 200, and 400 Hz. This signal is applied to a SSB modulator together with a carrier at 100 kHz, with only the upper sideband retained. In the coherent detector used to recover m(t), the local oscillator supplies a sinusoidal wave of frequency 100.02 kHz. Determine the frequency components of the detector output.

 

(b) Repeat your analysis, assuming that only the lower sideband is transmitted.

Jul 31 2020 View more View Less

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