I am sampling voltage values. I need to convert it to the frequency domain
using FFT .
As I understand the frequency steps after FFT will be the integer
multiples of Fs/N (where Fs is the data sample rate in Hz, and N is the
FFT
length).
How can I have sub-Hz frequency steps?
Do I use use long sampling times and long FFT lengths, for instance,
Sampleing at 1 kHz and using 10000 FFT length will produce 0.1Hz frequency
steps, and the sample stream will be 10 seconds long?
Am I on the right track?
Thanks
Peter, pr20@[EMAIL PROTECTED]
pls, also e-mail copy of your reply.
