What is difference between digital and discrete signal?

What is difference between digital and discrete signal?

A discrete time signal which is not quantized can take any value in the given range (i.e. infinite options for the amplitude) where as a digital signal can take any value from a predefined finite set of amplitudes. The digital signal can take any value out of these N values only ( and not just any value).

Why do we convert continuous-time signal to discrete time signal?

Quantization: Conversion of a discrete-time continuous valued signal into a discrete-time, discrete valued digital signal • Digital signal values are a finite set of possible values. The differences between and ( ) is called the quantization error.

Is Money continuous or discrete?

A continuous distribution should have an infinite number of values between $0.00 and $0.01. Money does not have this property – there is always an indivisible unit of smallest currency. And as such, money is a discrete quantity.

What is the difference between discrete and continuous signals?

From a general point of view, signals are functions of one or several independent variables. There are two types of signals – discrete-time and continuous-time signals. Discrete-time signals are defined at the discrete moment of time and the mathematical function takes the discrete set of values.

Why do we use discrete time digital signals?

One major motivation for using discrete time digital signals, is the relative ease of their representation. Your suggestion of representing discrete time signals as a special case for their continuous time counterpart would lead to a highly sparse representation, thereby making it highly inefficient.

How are discrete signals represented in a light switch?

The switch either turns the light on or it turns it off, unless it is a florescent tube – then it’s probably still blinking. Because discrete signals exist in one of these two states, they are represented with a square wave as seen below.

Which is an odd signal discrete time or continuous time?

The discrete-time signal x n and continuous-time signal x ( t) are even if they are equal to their time-reversed counterparts, x n = x – n and x ( t) = x ( – t). And the signals are odd, if x n = – x n and x ( t) = – x ( – t). Odd signals are always 0 when n = 0, or t = 0.