Paul,
Would you mind sharing your implementation along with any accompanying
documentation? We are making some modifications to the FPGA firmware
ourselves (mods for a much more application specific usage) and while
I'm not sure how far we'll get with needing the 4-bit samples, we'd
We'll be looking into the possibility of contributing the new FPGA
configuration to GNU Radio once our code has been tested and refined.
--Paul
Tyrel Newton wrote:
Paul,
Would you mind sharing your implementation along with any accompanying
documentation? We are making some modifications
On Wed, Apr 09, 2008 at 04:36:48PM -0400, Paul Creekmore wrote:
We'll be looking into the possibility of contributing the new FPGA
configuration to GNU Radio once our code has been tested and refined.
--Paul
Thanks!
Eric
___
Discuss-gnuradio
Hi Paul and Tyrel,
I'm also in a similar situation to get the maximum bandwidth possible,
but just started... For me 2 bit quantization is sufficient
I've started modifying the FPGA firmware but I think it will take some
time before I implement and test it thoroughly..
Any approximate time
Well, I'm hoping to have 1, 2, 4, 8, and 16-bit quantization options
tested and working by the end of the month, if not within the next two
weeks. We're debugging an implementation right now.
But for full integration into GNU Radio, there are several other
considerations that my group has
Tyrel,
The current FPGA configuration does not support 4-bit samples, but it is
possible to modify the configuration (Verilog code) to convert the
samples to 4-bit.
My research group is currently working on adding 1, 2, and 4-bit
quantization options to the USRP, as well as accompanying
Hi,
If the I,Q bit width output of the DDC is reduced from 16 bit to 12 bit, then I
Q will occupy 24 bit (3 Bytes). Thus we will be able to maximize the
instantaneous bandwidth to 32MB/3 = 10.6MHz without scarifying much because the
original signal was digitized with 12 bit ADC.
Regards,
We have an application where the overall accuracy of the A/D converter
is not terribly important but where we need as high a sampling rate as
we can get. To this end, we found and intend to use the 8-bit option
that allows for 8-bit I and Q signals instead of the normal 16-bit.
However, is
