Periodic discrete time signal

1. What is periodic discrete-time signal?
2. What is a discrete-time signal example?
3. How do you find the fundamental period of a discrete-time signal?
4. What is the difference between periodic and non periodic signals?

What is periodic 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). Note that, somewhat counterintuitively, not all sinusoidal discrete-time signals are periodic. Consider. x(n) = cos(2π f n).

What is a discrete-time signal example?

Discrete-time signal: the variable of time is discrete. The weekly Dow Jones stock market index is an example of discrete-time signal.

How do you find the fundamental period of a discrete-time signal?

Detailed Solution. A discrete-time signal is periodic if there is a non-zero integer N ∈ discrete time such that for all n ∈ discrete time, x(n + N) = x(n). The smallest value of N is known as the fundamental period.

What is the difference between periodic and non periodic signals?

A signals that repeats its pattern over a period is called periodic signal, A signal that does not repeats its pattern over a period is called aperiodic signal or non periodic.