Howtosignalprocessing
- What is the condition for periodicity of discrete-time signal?
- What is the relationship between continuous-time signals and discrete-time signals?
- What is the relation between continuous and discrete-time system?
- What is continuous and discrete signal?
What is the condition for periodicity of discrete-time signal?
A discrete-time signal is periodic if there is a non-zero integer p ∈ DiscreteTime such that for all n ∈ DiscreteTime, x(n + p) = x(n).
What is the relationship between continuous-time signals and discrete-time signals?
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 relation between continuous and discrete-time system?
Continuous and discrete signals can be related through the sampling operation in the sense that a discrete signal can be obtained by performing sampling on a continuous- time signal with the uniform sampling period as presented in Figure 1.3. Since is a given quantity, we will use in order to simplify notation.
What is continuous and discrete 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.
