The ability to drop bits off in hardware would be a great feature, at the moment I have three high end digitizers and could double my bandwidth/ or quadruple if they had this feature.
Most astronomy applications can get away with 2 bits, 4 nice, and 8 is a waist, I have several applications that our USRP2 would be perfect for if we could get rid of bits in the FPGA, with out being FPGA programmers. ________________________________________ From: discuss-gnuradio-bounces+bruce.stansby=postgrad.curtin.edu...@gnu.org [discuss-gnuradio-bounces+bruce.stansby=postgrad.curtin.edu...@gnu.org] on behalf of Marcus D. Leech [[email protected]] Sent: Tuesday, 30 March 2010 1:10 PM To: [email protected] Subject: Re: [Discuss-gnuradio] Considerations for new hardware in gnuradio On 03/29/2010 11:13 PM, George Nychis wrote: > Short but sweet response. It would be great to have a SDR hardware > board that works with GNU Radio that has a very, very, low latency > connection to the host, like PCI express. Similar to the Microsoft > Research SDR (previously named SORA). That would be great and open up > possibilities of low latency MAC protocol implementations. > > Just sayin'! > > - George More bandwidth == definitely_better But IM(PNS)HO you don't want receiver cards living inside a PC cabinet. Which is why I like the USRP "remote" philosophy. I'm thinking about doing some hardware myself, for the specific purpose of radio astronomy: o integrated LNA/downconverter/sampler o common LO/sample-clock for all antenna o 1GiGE, probably using a compact (4-bit) coding to improve channel bandwidth This would appeal to only a small fraction of all Gnu Radio users, to be sure. But there are some themes that are common to other applications: o robust phase coherence (any kind of aperture synthesis requires this) o high bandwidth (sometimes at the expense of code bits) Fit in a tighter cost envelope. :-) -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
