Question

(a) Consider a message signal 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 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.

Answer 1

Answer:

Explanation:

With Only The Upper Sideband Retained. In The Coherent Detector Used To Recover M(t), The Local Oscillator Supplies A Sine Wave Of Frequency 100.02 KHz The frequency components in the message signal are f1 = 100Hz, f2 200 H z at 100, 200, and 400 Hz This signal is applied to an SSB modulator together