Question

What is sampling at a rate higher than the Nyquist frequency called?

(a) Undersampling

(b) Oversampling

(c) Distortion

(d) Aliasing

I have been asked this question in class test.

My doubt stems from Data Conversion topic in section Digital Communication Techniques of Avionics

Answer 1

Sampling at a rate higher than the Nyquist frequency is called oversampling. The Nyquist frequency is the minimum rate at which a signal should be sampled to avoid aliasing, which is typically twice the highest frequency present in the signal. When the sampling rate exceeds this frequency, it's known as oversampling.

Final Answer:

(b) Oversampling.