Tuesday 22 July 2014

Difference between Encoding and Modulation

• Modulation is about changing a signal, whereas encoding is about representing a signal.

• Encoding is about converting digital or analog data to digital signal, whereas modulation is about converting digital or analog data to an analog signal.

• Encoding is used to ensure efficient transmission and storage, whereas modulation is used to send the signals to a long way.

• Encoding is mainly used in computers and other multimedia applications, whereas modulation is used in communication mediums such as telephone lines and optical fibers.

• Encoding is about assigning different binary codes according to a particular algorithm, but modulation is about changing the properties of one signal value according to certain properties (Amplitude, Frequency, or Phase) of another signal.

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