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# DSB-SC Demodulation using matlab

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### DSB-SC Demodulation using matlab

1. 1. DSB-SC DEMODULATION ‫االسم‬:‫داود‬ ‫سلمان‬ ‫افراح‬ -IT ‫المرحله‬:‫الثالثه‬– ‫االتصاالت‬ ‫مختبر‬
2. 2.  Demodulation is done by multiplying the DSB-SC signal with the carrier signal. For demodulation, the modulation oscillator's frequency and phase must be exactly the same as the demodulation oscillator's otherwise, distortion and/or attenuation will occur. DSB-SC can be demodulated if modulation index is less than unity. Demodulation
3. 3.  Designing the DSB-SC demodulation circuit with the matlab program requires to design the DSB-SC modulation circuit first, design DSB-SC demodulation circuit second, then connect the output of the modulator circuit to the input of the demodulator circuit. Choose the components from the Simulink Library Browser as shown in the following figures: DSB-SC Demodulation Circuit
4. 4.  DSB-SC modulation circuit using matlab
5. 5.  The input of the circuit Message signal Carrier signal
6. 6.  The output of the circuit DSB-SC modulated signal
7. 7.  DSB-SC demodulation circuit
8. 8.  I/O of the previous circuit Input signal Output signal
9. 9.  Complete circuit
10. 10.  Another way to implement the DSB-SC modulation and demodulation circuit
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