Computer Science, asked by sawantjayraj077, 9 months ago

What converts analog to digital signals​

Answers

Answered by sachidanandgupta2007
1

Answer:

An analog-to-digital converter, or ADC as it is more commonly called, is a device that converts analog signals into digital signals. Analog information is transmitted by modulating a continuous transmission signal by amplifying a signal's strength or varying its frequency to add or take away data.

How it is done ?

Analog signal is converted to a digital signal using a two step process.

Sampling

Quantization

The device used to do this is called as ADC (Analog to Digital Converter).

Step 1: Sampling converts a continuous time continuous amplitude (real valued) signal to discrete time continuous amplitude (still real valued) signal. Remember only time axis is discretized and not the amplitude axis.

Step 2: Quantization converts the discrete time continuous amplitude signal to discrete time and discrete valued (from a set of finite values, so that it can be represented by finite bits and can be stored on a computer).

Different sampling techniques and different quantization techniques is all together a big topic.

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