Howtosignalprocessing
- What is Nyquist sampling rate Mcq?
- What is Nyquist rate in sampling process?
- Why Nyquist rate is 2 times?
- What is Nyquist criteria for sampling?
What is Nyquist sampling rate Mcq?
Nyquist rate is the minimum rate at which a signal can be sampled without introducing errors, which is twice the highest frequency present in the signal.
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.
Why Nyquist rate is 2 times?
If the signal contains high frequency components, we will need to sample at a higher rate to avoid losing information that is in the signal. In general, to preserve the full information in the signal, it is necessary to sample at twice the maximum frequency of the signal. This is known as the Nyquist rate.
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.
