On Thu, Feb 23, 2012 at 2:22 PM, Azelio Boriani <azelio.bori...@screen.it>wrote:
> Actually, undersampling does use the alias effect to bring down the RF > carrier. That is, the direct sampling radio concept cannot avoid the > aliasing: it is exploited to avoid, for example, to sample a 2GHz carrier > modulated with a 20MHz signal with a 4Gsample/second ADC (by the way, does > it exist?). A simple 20Msample/second ADC would be enough. Yes, to analyze > an analog signal in real time I doubt you can use this method, if the > signal is periodic maybe... you can advance the sampling trigger a bit, > cycle by cycle, and reconstruct the whole signal after this little amount > has covered a full cycle. > Yes. See for example, the description on this (and the seller's other similar) ebay item(s): 260955742514 Orin. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
