Instructions for Phase Modulation (PM)

Step 1: Click on 'Generate Message' button to generate input message signal
Step 2: Then click on 'Generate Carrier' button to generate carrier signal
Step 3: The carrier frequency has to be more than the message frequency and You can change frequencies using sliders
Step 4: Click on 'Generate Phase Modulated Signal' button to generate Phase Modulated Signal
Step 5: Click on the 'Show Frequency Spectrums of PM' button to see spectrums of the PM signal
Here, β represents the modulation index. The frequency spectrum is shown for a modulation index of 1

Message Frequency (Hz)

Carrier Frequency (Hz)

Kp:

β =

Instructions for Phase Demodulation

Step 1: You can Demodulate the PM Signal clicking on the 'Perform phase Demodulation' button
Step 2: Click on the 'Show Frequency Spectrums of Original and Demodulated Signal' button to see spectrums of the message and demodulated signal