How can we do finite-step signal sampling in practical?

1. How to do sampling of a signal?
2. In which type of signal sampling is done?
3. Which type of filter is recommended to be used prior to sampling and why?
4. How is DSP sampling done?

How to do sampling of a signal?

Sampling a continuous time signal produces a discrete time signal by selecting the values of the continuous time signal at evenly spaced points in time. Thus, sampling a continuous time signal x with sampling period Ts gives the discrete time signal xs defined by xs(n)=x(nTs).

In which type of signal sampling is done?

There are three types of sampling techniques: Impulse sampling. Natural sampling. Flat Top sampling.

Which type of filter is recommended to be used prior to sampling and why?

An anti-aliasing filter (AAF) is a low pass filter, used before a signal sampler to restrict the bandwidth of a signal. It blocks the higher frequency contents in a signal to restrict it to a maximum frequency.

How is DSP sampling done?

When a source generates an analog signal and if that has to be digitized, having 1s and 0s i.e., High or Low, the signal has to be discretized in time. This discretization of analog signal is called as Sampling.