That's out of my experience. But it's not easy - you have to learn RFNOC.
It's a lot of work. Try the Ettus channel.
On Mon, Apr 10, 2017 at 10:11 AM John B. Wood
wrote:
> On 04/10/2017 09:31 AM, Dan CaJacob wrote:
> > It's probably unreasonable to expect the ARM processor to deliver 56 Msps
>
On 04/10/2017 09:31 AM, Dan CaJacob wrote:
It's probably unreasonable to expect the ARM processor to deliver 56 Msps
to the 9361 without underflowing. It's just not that fast. It's marginal
even on a high performance desktop CPU. You could try implementing a noise
source in the FPGA using RFNO
It's probably unreasonable to expect the ARM processor to deliver 56 Msps
to the 9361 without underflowing. It's just not that fast. It's marginal
even on a high performance desktop CPU. You could try implementing a noise
source in the FPGA using RFNOC. That would almost certainly eliminate you
Hello, all. Perhaps I was a little too optimistic in attempting to use
the Ettus E310 as a broadband noise source. I'm using the GRC models
"Fast Noise Source" with uniform noise type connected to a "UHD: USRP
Sink" with a CF of 1 GHZ and sample rate set to 4 Msps. Running the
GRC-generated
On 03/28/2017 01:51 PM, mle...@ripnet.com wrote:
The baseband signal is simply mixed with the LO in the hardware.
Thanks, Marcus. That should equate to AM which is what I want. Sincerely,
John Wood
U.S, Naval Res
The baseband signal is simply mixed with the LO in the hardware.
On 2017-03-28 13:46, John B. Wood wrote:
> Hello, all. When I connect a GRC "Fast Noise Source" block output to the
> input of a "UHD: USRP Sink" (an Ettus E310) and connect a spectrum analyzer
> to the Tx port on the E310 I can
Hello, all. When I connect a GRC "Fast Noise Source" block output to
the input of a "UHD: USRP Sink" (an Ettus E310) and connect a spectrum
analyzer to the Tx port on the E310 I can see the RF output. My
question (using either a gaussian or normal distribution specified as a
baseband input to
Hi John,
trying to understand the confusion here:
What I recommended was really the two-block solution you mentioned in GRC:
Noise-to-air flow graph
So, wouldn't that be exactly what you need? A samp_rate wide piece of
white-as-it-gets noise anywhere the E310 can tune to?
Best regards,
Marcu
On 01/05/2017 02:22 PM, Marcus Müller wrote:
Hi John,
sure! Just use the noise source with a noise variance (amplitude) low
enough to allow for the resulting amplitude to very rarely exceed 1.0
(because that would lead to artifacts/non-gaussian distribution) (or,
better yet, use the fast noise s
Hi John,
sure! Just use the noise source with a noise variance (amplitude) low
enough to allow for the resulting amplitude to very rarely exceed 1.0
(because that would lead to artifacts/non-gaussian distribution) (or,
better yet, use the fast noise source, which preallocates a definable
amount of
Hello, all. This may be a "RTFM" question but with the stock tools in
GRC (or a non-GRC generated .py file) can a gaussian white noise
generator be readily implemented on an Ettus E310 to provide a broadband
RF noise output (some level in dBW/Hz) over a specified bandwidth
(within the capabili
11 matches
Mail list logo
