Howtosignalprocessing
- What are the discrete-time signals?
- Are discrete signals continuous?
- What is the difference between discrete-time signals and sequences?
- What is discrete-time continuous signal?
What are the discrete-time signals?
A discrete-time signal is a sequence of values that correspond to particular instants in time. The time instants at which the signal is defined are the signal's sample times, and the associated signal values are the signal's samples.
Are discrete signals continuous?
A continuous-time signal has values for all points in time in some (possibly infinite) interval. A discrete time signal has values for only discrete points in time. Signals can also be a function of space (images) or of space and time (video), and may be continuous or discrete in each dimension.
What is the difference between discrete-time signals and sequences?
Continuous-time signals are often referred to asanalog signals. Discrete-time signalsare defined at discrete times, and thus, the independent variable has discrete values; that is, discrete-time signals are represented as sequences of numbers.
What is discrete-time continuous signal?
A signal is considered to be a continuous time signal if it is defined over a continuum of the independent variable. A signal is considered to be discrete time if the independent variable only has discrete values.
