Right... Not necessarily an FFT, other transforms are quite well suited to this. FFT was just my quick way to let the idea out ;-).
lc. Magnus Danielson wrote: > From: Luis Cupido <[EMAIL PROTECTED]> > Subject: Re: [time-nuts] Fast frequency counting question > Date: Mon, 05 May 2008 00:08:07 +0100 > Message-ID: <[EMAIL PROTECTED]> > >> Couldn't it be: >> digitizing, process the data with a sliding FFT >> (making a spectrogram) plus deconvolve >> with the system line broadening response, >> and if all chirps are equal then repeating >> the above N times for resolution increase. > > Not quite so easy. First of all, this type of transient response signal is not > well suited for FFT. Then, I am not sure the repeatability of the signal is > valid to such a degree that an accurate curve is achieved. I think the basic > approach is fairly right, but that they are stretching the limits somewhat of > that particular counter for this specific measurement. > > Cheers, > Magnus > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
