What is Modulation?

Modulation is the process of superimposing the information contents of a modulating signal on a carrier signal (which is of high frequency) by varying the characteristics of carrier signal according to the modulating signal.

Modulation is a process in which the base band signal modifies another high-frequency signal called the carrier.

Types of Modulation

We can modulate the information-bearing signal into two types namely.These

are called Modulation Techniques.

1. Analog Modulation

2. Digital Modulation

Analog modulation is the process of converting an analog input signal into a

signal that is suitable for RF transmission.

Digital modulation is the process of converting a digital bistream into an analog signal suitable for RF transmission.