finding the sampling frequency from the following

Hi everyone,

I have to work out the sampling frequency. I have set up a vector of time values with 128 elements sampled at twice a second. The signal has to be calculated with five cycles in 63.5s and the code for that is:

t = 0:0.5:63.5; yt = sin(2*pi*t*5/63.5);

How do I get the sampling frequency from this information?

Thanks!

Answer 1

[Walter Roberson]

Sampling frequency is 1 divided by sample rate.

1 / (M seconds per sample) = ? samples per second

and samples per second is Hz .

[u-will-neva-no]

Looking at wikipedia (which may be wrong) it states that the sampling rate is the same as the sampling frequency. So my sampling rate is either 0.5 or 2...

[Walter Roberson]

Frequency is always expressed in cycles (or items) per unit time, never in units of time.

Perhaps I should have said,

"Sampling frequency is 1 divided by sample period"