Question

Modulation and different types of modulation

Answer 1

Modulation is a process of mixing a signal with a sinusoid to produce a new signal. This new signal, conceivably, will have certain benefits over an un-modulated signal.
There are 3 basic types of modulation:
Amplitude modulation, Frequency modulation, and Phase modulation.

amplitude modulation
a type of modulation where the amplitude of the carrier signal is modulated (changed) in proportion to the message signal while the frequency and phase are kept constant.

frequency modulation
a type of modulation where the frequency of the carrier signal is modulated (changed) in proportion to the message signal while the amplitude and phase are kept constant.

phase modulation
a type of modulation where the phase of the carrier signal is varied accordance to the low frequency of the message signal is known as phase modulation.

Answer 2

HEY MATE HERE IS YOUR ANSWER:-


MODULATION:-
Modulation is the process of superimposing electrical audio signal on high frequency carrier wave.
it is of three types
1. Amplitude modulation
2. Frequency modulation
3. Phase modulation.

HOPE IT HELPS