Difference between pulse modulation and continuous wave modulation

Pulse modulation Continuous wave modulation
The modulated signal is in the form of pulses. The modulated signal is in the form of continuous signals.
It is used sampling technique. It is not used sampling technique.
It has required large bandwidth. It has required less bandwidth.
Pulse modulation has both analog and digital nature. It has only analog modulation.
In pulse modulation, the train of pulses is used as a carrier. High frequency sine wave is used as carrier.
The input signal is either analog or digital. Input signal is analog signal only.
The example of pulse modulation is PAM, PPM, PWM, DPCM, ADM etc. The example of continuous wave modulation is AM (amplitude modulation), FM (frequency modulation) and PM (pulse modulation).
It is used in satellite communication. It is used in radio and TV broadcasting.

 

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