Nyquist sampling

1. What is Nyquist criteria for sampling?
2. What is Nyquist formula?
3. What is Nyquist rate in sampling process?
4. What means Nyquist?

What is Nyquist criteria for sampling?

Simply stated, the Nyquist criterion requires that the sampling frequency be at least twice the highest frequency contained in the signal, or information about the signal will be lost. If the sampling frequency is less than twice the maximum analog signal frequency, a phenomenon known as aliasing will occur.

What is Nyquist formula?

The Nyquist formula below provided a relationship between capacity and bandwidth under idealized conditions where noise is not considered. C(bps) = 2B * log₂M (Nyquist) C is the capacity in bits per second, B is the frequency bandwidth in Hertz, and M is the number of levels a single symbol can take on.

What is Nyquist rate in sampling process?

This theorem states that the highest frequency which can be represented accurately is one half of the sampling rate. The Nyquist rate specifies the minimum sampling rate that fully describes a given signal; in other words a sampling rate that enables the signal's accurate reconstruction from the samples.

What means Nyquist?

In A/D conversion, the Nyquist principle (derived from the Nyquist-Shannon sampling theorem) states that the sampling rate must be at least twice the maximum bandwidth of the analog signal in order to allow the signal to be reproduced.