error ф. ated by applying it to a coherent detector Evaluate the effect of a phase
(SULIT) d. A coherent detector is used to demodulate Amplitude Modulated Single Side Band Suppressed Carrier (AMSSBSc) as shown in Figure Q1(d). Explain mathematically the effect on the output signal vo(t) when there is a phase difference between the AMssesc and the local oscillator vc(t). (CO1: P01 - 5 marks) X(t) AMssesct) х LPF Multiplier Figure Q1(d)
d. A coherent detector is used to demodulate Amplitude Modulated Single Side Band Suppressed Carrier (AMssesc) as shown in Figure Q1(d). Explain mathematically the effect on the output signal Vo(t) when there is a phase difference between the AM ssesc and the local oscillator vo(t). (C01: P01 - 5 marks) Assasco X LPF voll v.0) Multiplier Figure Q1(d)
4. (4 Marks) The linear model of a phase detector (phase-lock-loop) can be represented by figure 4. Voltage-controlled oscillator Amplifier Filter LE Figure 4 Phase locked loop The phase-lock systems are designed to maintain zero difference in phase betweer the input carrier signal and a local voltage controlled oscillator. Phase lock loops find application in colour television, missile tracking and space telemetry. The filter for a particular application is chosen as: 10(s +10) (s +D(s +100) F(s) It is desired...