Hello Aviv... I believe this has something similar to what you were mentioning...
http://staff.washington.edu/jon/gr-mrfm/ Regards, Rakesh On Wed, May 20, 2009 at 4:20 AM, Aviv Keshet <[email protected]> wrote: > This email is not a question, but more of a comment. > > I've been working for about a week on re-purposing a USRP as a digital > feedback > controller, rather than a software radio. The USRP hardware platform > provides > you with quite a good starting point for this sort of general purpose > digital > signal processing application. Nice, fast, and fairly high resolution > analog > front end. And the total ADC + DAC latency is only 250 ns (by my > measurements), > which means PID feedback controllers with lock bandwidths up to 1MHz are > quite > achievable (something that can be quite a pain to do with analog > components). > And of course a digital feedback controller, being programmable, can be > made to > do also sorts of fancy "smart" things that are a pain to do in analog (hold > or > reset the integrator when told to do so, or make the loop gains > setpoint-dependent, or your great idea here). > > Despite this seeming like a killer app, I haven't really found much > discussion > of it in this list's archives or on the gnuradio wiki. So I'm mentioning > the > idea in public, for future mailing list archive searchers. If, at some > point, > my FPGA code reaches a level of maturity where am I not too embarassed to > share > it, maybe I will post it somewhere. Or maybe someone on this list will now > pipe > in that this is all old hat and has already been done. > > Aviv > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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