how to identify the sampling rate of signal with unknown sampling rate

Dear All;

If i have a signal but i do not know the sampling rate , i need to find the power spectrum of the signal , then plot against the frequency

Can you help?

Answer 1

[Adam]

Do you know the range of the values in the signal? e.g. minimum and maximum time. If not then you simply don't have enough information to work it out. If you do then it is just a trivial calculation from the min, max and number of samples, assuming it has a constant sample rate.

sampleRate = ( maximumVal - minimumVal ) / numVals - 1;