Can a unit delay in discrete time be represented by exponential functions?

1. What is discrete time exponential signal?
2. What is discrete time delay?
3. What is exponential signal in DSP?

What is discrete time exponential signal?

A discrete-time real exponential sequence is defined as − 𝑥(𝑛) = 𝑎^𝑛 for all 𝑛 Depending upon the value of a the discrete time real exponential signal may be of following type − When a < 1, the exponential sequence x(n) grows exponentially. When 0 < a < 1, the exponential signal x(n) decays exponentially.

What is discrete time delay?

Description. The Discrete Variable Time Delay block delays the input signal by the value specified in the D input. At each simulation time step, the Discrete Variable Time Delay block saves the time and the input value in an internal buffer and outputs the previous input value determined by the delay input.

What is exponential signal in DSP?

The exponential: The “exponential” signal literally represents an exponentially increasing or falling series: Continuous time: s(t)=eαt. Note that negative α values result in a shrinking signal, whereas positive values result in a growing signal.