difference between digital signal and discrete time signal

difference between discrete and digital

what is the difference between digital signal and discrete time signal?

i am not sure but i think digital signal is discrete in time and can have any of some finite number of specific values , while the discrete time signal is only discrete in time but can have any value just like analog signal

Re: difference between digital signal and discrete time sign

A discrete signal or discrete-time signal is a time series, perhaps a signal that has been sampled from a continuous-time signal. Unlike a continuous-time signal, a discrete-time signal is not a function of a continuous-time argument, but is a sequence of quantities, that is, a function over a domain of discrete integers. Each value in the sequence is called a sample.

When a discrete-time signal is a sequence corresponding to uniformly spaced times, it has an associated sampling rate; the sampling rate is not apparent in the data sequence, so may be associated as a separate data item.
[edit]

Digital signals

A digital signal is a discrete-time signal that takes on only a discrete set of values. It typically derives from a discrete signal that has been quantized.

Common practical digital signals are represented as 8-bit (256 levels), 16-bit (65,536 levels), 32-bit (4.3 billion levels), and so on, though any number of quantization levels is possible, not just powers of two.

Re: difference between digital signal and discrete time sign

discrete signal is discrete in time but continuous in amplitude..
digital signal is discrete in both time and amplitude.

Re: difference between digital signal and discrete time sign

:wink:very nice...
helpfull...