Question

Saturation noises can be avoided or reduced by

(a) Automatic gain control

(b) Amplifying

(c) Filtering

(d) None of the mentioned

This question was addressed to me by my college director while I was bunking the class.

I want to ask this question from Sources of Corruption topic in portion Formatting and Baseband Modulation of Digital Communications

Answer 1

The correct choice is (a) Automatic gain control

To explain: When the difference between input and output signal increases, we say that analog to digital converter is working in saturation. This introduces saturation noise or error. This can be reduced by using automatic gain control.