Howtosignalprocessing
- How do you calculate sampling rate of a signal?
- What is the minimum sampling frequency for accurate reconstruction of the signal?
- What is Nyquist criteria for sampling for reconstruction )?
- What is sampling and reconstruction of signal?
How do you calculate sampling rate of a signal?
The sampling frequency or sampling rate, fs, is the average number of samples obtained in one second, thus fs = 1/T. Its unit is sample per second or hertz e.g. 48 kHz is 48,000 samples per second.
What is the minimum sampling frequency for accurate reconstruction of the signal?
The minimum sampling frequency of a signal that it will not distort its underlying information, should be double the frequency of its highest frequency component. If fS is the sampling frequency, then the critical frequency (or Nyquist limit) fN is defined as equal to fS/2.
What is Nyquist criteria for sampling for reconstruction )?
Nyquist's theorem states that a periodic signal must be sampled at more than twice the highest frequency component of the signal. In practice, because of the finite time available, a sample rate somewhat higher than this is necessary.
What is sampling and reconstruction of signal?
A continuous time signal can be processed by processing its samples through a discrete time system. For reconstructing the continuous time signal from its discrete time samples without any error, the signal should be sampled at a sufficient rate that is determined by the sampling theorem.
