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8. To modulate the carrier wave c(t) = cos(2л50000t) by different methods, including AM DSB-SC SSB through the lower sideband and SSB through the upper sideband. on signal received is SAM(t) = m(t)c(t) = [1+cos(2л1000t)] cos(250000t) SDSB-SC(t) = cos(2л1000t)cos(2л50000t) SSSB-LSB(t) = cos(2л49000) SSSB-USB(t) = cos(2л51000t) respectively, if these signals are fed into the synchronous detector circuit as shown in Figure 8.1, which consists of a multiplier circuit, a local oscillator circuit and low pass filter circuit Xinh) XLO(1) LO XA(t) LPF Figure 8.1 Synchronous detector circuit Xout(t) Find the value of the signal xA(t) when each type of signal is fed into the synchronous detector circuit for the case where the local oscillator circuit generates the signal xLO(t) = cos(2л50000t)

8. To modulate the carrier wave c(t) = cos(2л50000t) by different methods, including AM DSB-SC SSB through the lower sideband and SSB through the upper sideband. on signal received is SAM(t) = m(t)c(t) = [1+cos(2л1000t)] cos(250000t) SDSB-SC(t) = cos(2л1000t)cos(2л50000t) SSSB-LSB(t) = cos(2л49000) SSSB-USB(t) = cos(2л51000t) respectively, if these signals are fed into the synchronous detector circuit as shown in Figure 8.1, which consists of a multiplier circuit, a local oscillator circuit and low pass filter circuit Xinh) XLO(1) LO XA(t) LPF Figure 8.1 Synchronous detector circuit Xout(t) Find the value of the signal xA(t) when each type of signal is fed into the synchronous detector circuit for the case where the local oscillator circuit generates the signal xLO(t) = cos(2л50000t)

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Topic : Amplitude Modulation

6.8) 

8. To modulate the carrier wave c(t) = cos(2л50000t) by different methods, including AM DSB-SC SSB through the lower sideband and SSB through the upper sideband. on signal received is SAM(t) = m(t)c(t) = [1+cos(2л1000t)] cos(250000t) SDSB-SC(t) = cos(2л1000t)cos(2л50000t) SSSB-LSB(t) = cos(2л49000) SSSB-USB(t) = cos(2л51000t) respectively, if these signals are fed into the synchronous detector circuit as shown in Figure 8.1, which consists of a multiplier circuit, a local oscillator circuit and low pass filter circuit Xinh) XLO(1) LO XA(t) LPF Figure 8.1 Synchronous detector circuit Xout(t)
Transcribed Image Text:8. To modulate the carrier wave c(t) = cos(2л50000t) by different methods, including AM DSB-SC SSB through the lower sideband and SSB through the upper sideband. on signal received is SAM(t) = m(t)c(t) = [1+cos(2л1000t)] cos(250000t) SDSB-SC(t) = cos(2л1000t)cos(2л50000t) SSSB-LSB(t) = cos(2л49000) SSSB-USB(t) = cos(2л51000t) respectively, if these signals are fed into the synchronous detector circuit as shown in Figure 8.1, which consists of a multiplier circuit, a local oscillator circuit and low pass filter circuit Xinh) XLO(1) LO XA(t) LPF Figure 8.1 Synchronous detector circuit Xout(t)
Find the value of the signal xA(t) when each type of signal is fed into the synchronous detector circuit for the case where the local oscillator circuit generates the signal xLO(t) = cos(2л50000t)
Transcribed Image Text:Find the value of the signal xA(t) when each type of signal is fed into the synchronous detector circuit for the case where the local oscillator circuit generates the signal xLO(t) = cos(2л50000t)
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