What is a Digital Signal?

Digital Signal

A digital signal is a signal that is used to represent data as a sequence of separate values at any point in time. It can only take on one of a fixed number of values. This type of signal represents a real number within a constant range of values.

Characteristics of Digital Signals

Here, are essential characteristics of Digital signals

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

Advantages of Digital Signals

Here, are pros/advantages of Digital Signals:

• Digital data can be easily compressed.
• Any information in the digital form can be encrypted.
• Equipment that uses digital signals is more common and less expensive.
• Digital signal makes running instruments free from observation errors like parallax and approximation errors.
• A lot of editing tools are available
• You can edit the sound without altering the original copy
• Easy to transmit the data over networks

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
• It requires greater bandwidth
• Systems and processing is more complex.