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Advantages and Disadvantages of Digital Signals

  • Last Updated : 09 Dec, 2020

A signal is an electromagnetic or electrical current that carries data from one system or network to a special. There are two main sorts of signals utilized in electronics: analog and digital signals.

Digital Signal :
It can only combat one among a hard and fast number of values. This type of signal represents a true number within a continuing range of values. A digital signal may be a signal that represents data as a sequence of discrete values.

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  • Variable electric current or voltage.
  • Phase or polarization of an electromagnetic field.
  • Acoustic pressure.
  • The magnetization of a magnetic storage media.
  • Digital signals are utilized in all digital electronics, including computing equipment and data transmission devices.



Here, are essential characteristics of Digital signals as follows.

  • Digital signal are continuous signals.
  • This type of electronic l signals are often processed and transmitted better compared to analog signal.
  • Digital signals are versatile, so it’s widely used.
  • The accuracy of the digital signal is best than that of the analog signal.

Advantages of Digital Signals :
Here, are pros/advantages of Digital Signals as follows.

  • Digital data can be easily compressed.
  • Equipment that uses digital signals is more common and fewer expensive.
  • These signals turn the moving instruments free from errors.
  • You can edit the sound without altering the first copy.
  • Digital signals can convey information with less noise, distortion, and interference.
  • Digital signals can be reproduced easily in mass quantities at comparatively low costs.
  • As the DSP operations are often altered that’s why digital signal processing is more flexible.
  • Digital signal processing is safer because digital information are often easily encrypted and compressed.
  • Digital systems are more accurate, and therefore the probability of error occurrence are often reduced by employing error detection and correction codes.
  • Digital signals are often easily stored on any magnetic media or optical media using semiconductor chips.
  • Digital signals can be transmitted over long distances.

Disadvantage of Digital Signals :

  • Sampling may cause loss of information.
  • A/D and D/A demands mixed-signal hardware.
  • Processor speed is limited.
  • Develop quantization and round-off errors.
  • Systems and processing is more complex.
  • A higher bandwidth is required for data communication in comparison to analog transmission of an equivalent information.
  • Digital systems and processing are typically more complex.
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