[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: [Discuss-gnuradio] Considerations for new hardware in gnuradio
From: |
Bruce Stansby |
Subject: |
RE: [Discuss-gnuradio] Considerations for new hardware in gnuradio |
Date: |
Tue, 30 Mar 2010 05:43:59 +0000 |
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: address@hidden address@hidden on behalf of Marcus D. Leech address@hidden
Sent: Tuesday, 30 March 2010 1:10 PM
To: address@hidden
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
address@hidden
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio