Why we do multiple aliasing of high order harmonics

1. Can oversampling cause aliasing?
2. What is the advantage of aliasing?
3. What is aliasing and why does it occur?
4. What is aliasing and how do we prevent it?

Can oversampling cause aliasing?

1.1 What is Oversampling? As per Nyquist sampling theorem, a signal must be sampled at a rate greater than twice its maximum frequency component in order to ensure unambiguous data. If the Nyquist criterion is not met, aliasing will occur.

What is the advantage of aliasing?

To provide shorter, more user-friendly URLs, which map to longer paths.

What is aliasing and why does it occur?

Aliasing occurs when an oscilloscope does not sample the signal fast enough to construct an accurate waveform record. The signal frequency is misidentified, and the waveforms displayed on an oscilloscope become indistinguishable. Aliasing is basically a form of undersampling.

What is aliasing and how do we prevent it?

Aliasing is the effect of new frequencies appearing in the sampled signal after reconstruction, that were not present in the original signal. It is caused by too low sample rate for sampling a particular signal or too high frequencies present in the signal for a particular sample rate.