# How to determine Nyquist Rate

I have the Fourier Transform of a signal. How can I determine the Nyquist Rate of that signal? What is the formula for that?

• If you have fourier transform of a signal,then you will know the maximum frequency present in the signal. you can sample the signal at a frequency greater than twice the maximum frequency that you obtain from fourier transform. That will be your nyqvist rate. – Karan Talasila May 20 '14 at 4:39