Can we define discrete signal at all interval of time?

A discrete signal or discrete-time signal is a time series consisting of a sequence of quantities. Unlike a continuous-time signal, a discrete-time signal is not a function of a continuous argument; however, it may have been obtained by sampling from a continuous-time signal.

Why do we need a discrete-time signal?

3 Answers. Sampling discrete-time signals, i.e., using only every Nth sample of a sequence of samples, is useful for efficiently processing, transmitting, or storing information, if we can be sure that the sampling rate can be reduced without significant loss of information. This process is called decimation.

What is the discrete-time signal after sampling?

Discrete–time Signals are defined only at certain specific values of time or variable. The discrete-time signal is obtained by “taking-samples” of the analog signal every T second.

What is the difference between the continuous time signal and the discrete-time 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.

What are the properties of a discrete-time signal?

Discrete-time signal: A signal x(n) is said to be discrete-time signal if it can be defined for a discrete instant of time. – Amplitude of the signal varies at every discrete values of n, which is generally uniformly spaced.

What is the value of discrete-time Xn at n 0?

The above equation is known as synthesis equation or inverse transform equation. What is the value of discrete time signal x(n) at n=0 whose Fourier transform is represented as below? Therefore, the value of the signal x(n) at n=0 is ω_c/π.

What are the properties of discrete-time signals?

What is continuous time and discrete time signal?

What is discrete sampling in research?

[di′skrēt ′sam·pliŋ] (electronics) Sampling in which the individual samples are of such long duration that the frequency response of the channel is not deteriorated by the sampling process.

How are discrete-time signals classified differentiate between them?

Discrete time signals can be classified as follows: Periodic and non-periodic signals. Deterministic and random signals. Energy signals and power signals.