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Q9) An information signal s(t) is fed into an AM-DSB-C modulator with carrier frequency fe = 10 kHz. The modulated signa
Posted: Sun May 15, 2022 7:54 pm
by answerhappygod
- Q9 An Information Signal S T Is Fed Into An Am Dsb C Modulator With Carrier Frequency Fe 10 Khz The Modulated Signa 1 (43.15 KiB) Viewed 42 times
Q9) An information signal s(t) is fed into an AM-DSB-C modulator with carrier frequency fe = 10 kHz. The modulated signal is given by Sam(t) = 6 x (1 +0.5s(t)) cos(27tfct). Suppose the spectrum of s(t) is as shown in Fig. 29 and is zero for all frequencies below -3 kHz or above 3 kHz. Sf) Fig. 29 -3kHz 0 3kHz f (a) Sketch the magnitude spectrum of Sam(t). (b) Estimate the bandwidth of Sam(t). [3 marks] [3 marks]