question on resolution of DTFT

[musicguy]

resolution of dtft

i would like to know how to define the resolution of DTFT if my input is a finite sequence x. is it by formula ??

 

[Communications_Engineer]

finite sequence dtft

resolution would be N/Fs if I'm not mistaken, with N being the length of x[n]

 

[musicguy]

Re: question on DTFT

but my input is like x=[0 1 1 3 4 5 6 6 5 4 3 2 1], how can get fs??

 

[Communications_Engineer]

question on DTFT

you always know Fs, other wise how did you get this x[n]

IF this is the data you are getting from an ADC then you know the Fs and Quantization levels, right?

 

[Petre Petrov]

Re: question on DTFT

Hi!

What type of resolution:
* in amplitude, in phase, in frequency, etc.?

Normally you should know at least:
* the signal sampling factor (SSF) N = Fdigitalization /F signal
* the number of the accurate bits n
* the moment (angle) of the first sample
* the total number of bits
* the frequency band of the signal...

BR