Consider a signal xt whose highest frequency is 100 Hz What

Consider a signal x(t) whose highest frequency is 100 Hz. What is the Nyquist frequency? Consider the below three cases where the signal is sampled at 100 Hz 250 Hz 500 Hz Under which case(s) would there be aliasing problem. Explain it.

Solution

If samplevfrequency is 100 hz we will have alising problem.because,to perfectly reconstruct the original data from the sampled data the sample frequency must be atleast twice the maximum frequency.this sampling frequency is called Nyquist rate.