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digital signal (DS)

The main difference between analog and digital signals is that analog signals are continuous in time, whereas digital signals represent states at a specific point in time and are discrete in time.

It is therefore only possible to state that at this or that point in time the digital signal has this or that value. It does not allow any statement about what the signal looked like between the two points in time. Since the time points for digital signals are very close together, depending on the application only a few microseconds, the observer does not recognize the digital signal as a string of state values, but as a continuous signal.

Digital signal

Digital signal

Such a digital signal represents a point in time and an amplitude value. It consists of a string of several logical states which form the amplitude value. Decisive are the digital states (0 or 1) and not the signal level of the logical states. This depends on the logic used.

Informations:
Englisch: digital signal - DS
Updated at: 12.08.2014
#Words: 161
Links: analog, digital, signal, application (app), string
Translations: DE
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