Instructions for Double Sideband Suppressed Carrier (DSB-SC) Modulation
- Step 1: Click on 'Generate Message' button to generate input message signal.
- Step 2: Then click on 'Generate Carrier' button to generate carrier signal. The carrier frequency must be greater than the message frequency. You can adjust frequencies using the sliders.
- Step 3: Click on 'Generate DSBSC Modulated Signal' button to generate the modulated signal.
- Step 4: Click the 'Show Frequency Spectrums' button to view the DSB-SC spectra.
Step 1:
Step 2:
Message Signal Gain
1
Step 3:
Step 4:
DSBSC Demodulation
An Low-pass filter is required to extract original messsage frequency from DSBSC signal. A LPF's cutoff frequency is set near the message frequency to pass desired signals and attenuate higher frequencies.
Message Frequency (Hz)
Carrier Frequency (Hz)
Cut-off Frequency (Hz)