about DFT in Calculator - request for resources

[abcyin]

dft calculation

Hi all,

is there anybody who can provide some tutorial for DFT flow, because I see different results with different DFT setting, so I need a detailed DFT flow literature, better from how to set up the transient analysis, to how to get a correct frequency response with DFT function.

Thanks in advance,
best regards

 

[erikl]

dft analog calculator

... who can provide some tutorial for DFT flow ...

If you are working with Cadence tools, this tutorial may help you:

 

[amriths04]

dft in cadence resolution

Make sure your message frequency or the frequencies you are interested in knowing about lie in the fft bin. The greater the number of points in the fft the greater is the resolution in frequency domain.

I would suggest you to google these 2 keywords;
a) spectral leakage.
b) windowing.

if you have problems with the calculator user-interface refer cadence help documentations in your cadence browser.

hope it helps.

 

[name_n16]

Re: dft analog calculator

This really helped !!! I am also struggling with same problem ...