AIM:
To write a program to perform DSBSC modulation and demodulation using COLAB and study its spectral characteristics.
EQUIPMENTS REQUIRED
• Computer with i3 Processor • CO LAB.
Note: Keep all the switch faults in off position
Algorithm:
Define Parameters: • Fs: Sampling frequency. • T: Duration of the signal. • Fc: Carrier frequency. • Fm: Frequency of the message signal. • Amplitude: Maximum amplitude of the message signal. Generate Signals: • Message Signal: A sinusoidal signal that will be modulated. • Carrier Signal: A high-frequency sinusoidal signal used for modulation. DSBSC Modulation: • Modulated Signal: Multiply the message signal by the carrier signal to produce the DSBSC signal. DSBSC Demodulation: • Multiplication: Multiply the modulated signal by the carrier signal to get the product of the message signal with itself (i.e., the original message signal plus high-frequency components). • Low-pass Filtering: Apply a Butterworth low-pass filter to remove the high- frequency components and recover the original message signal. Visualization: Plot the message signal, carrier signal, DSBSC modulated signal, and the recovered signal after demodulation. PROCEDURE • Refer Algorithms and write code for the experiment. • Open SCILAB in System • Type your code in New Editor • Save the file
• Execute the code • If any Error, correct it in code and execute again • Verify the generated waveform using Tabulation and Model Waveform
Model Waveform:
Program:
Output Graph:
Tablular Column:
Result:
Thus the DSB-SC-AM Modulation and Demodulation using python is generated.