Howtosignalprocessing
- What does discrete mean in digital?
- Why digital signal is discrete?
- Is discrete the same as digital?
- Is digital data discrete?
What does discrete mean in digital?
When analog signals are brought into a computer, they must be made discrete (finite and countable). A discrete-time signal is a finite sequence of numbers, with finite possible values for each number. number values are limited by how many bits are used to represent them (bit depth);
Why digital signal is discrete?
A digital signal is an abstraction that is discrete in time and amplitude. The signal's value only exists at regular time intervals, since only the values of the corresponding physical signal at those sampled moments are significant for further digital processing.
Is discrete the same as digital?
A discrete time signal is quantised in time only, a digital signal is quantised both in time and amplitude. Neither a continuous amplitude discrete-time signal, nor a quantized discrete-time signal are digital signals.
Is digital data discrete?
Digital data, in information theory and information systems, is information represented as a string of discrete symbols, each of which can take on one of only a finite number of values from some alphabet, such as letters or digits.
