Hi,
Small addition: that’s why in the GNSS world (and others I guess) we use C/N0:
https://en.wikipedia.org/wiki/Carrier-to-noise-density_ratio which is “normed”
to 1Hz.
Kyeong’s video is a must watch if you are new to this field!
Cheers,
Jonas
From: Discuss-gnuradio
[mailto:discuss-gnuradio
I got a step further. The rfnoc domain for grc can be defined by a file
rfnoc.domain.yml.
Now I can connect the module and generate a Python file from the flowgraph.
The connections still do not work at run time, though , see below.
I have defined 'connect:' and 'cpp_connect:' in rfnoc.domain.
Hello,
Thank you for these wonderfully helpful answers. I think I understand now
that my signal still appears above the noise floor because it is the noise
and signal power compounded in that bandwidth. That video is also
incredibly helpful, especially since I am working with physical SDR's.
Having
Hi all,
I have a 1KHz complex exponential sampled at 10Ksps going through a
fractional resampler with resampling ratio = 10
I display the output on a frequency sink (with sampling rate set to
100Ksps).
I expect to see a 1 KHz tone.
Instead I see only a DC component (see attached grc file)
When I
Hello Erik,
I haven't really looked at gr-ettus for the master branch yet, but have you
tried replacing 'out' with 0 on line 125 in rfnoc_test1.py?
It would also be helpful if you supplied a git branch or something to look
at, I might give it a try myself.
Best regards,
Håkon Vågsether
On Wed,
I am trying to use a C-Media USB Audio Device as the audio source in my
flow graph. So far, I have not had any success with the device name.
I tried:
all variations of "C-Media Electronics Inc. USB Audio Device"
default (also an empty device name)
sysdefault
Device (there was a sym link)
hw:x,y
Hello Barry:
Maybe it is not 'the proper way', but maybe you can leave the "Audio Source"
as-is and set the input device using pavucontrol?
Regards,
Kyeong Su Shin
보낸 사람: Barry Duggan 대신 Discuss-gnuradio
보낸 날짜: 2019년 7월 4일 목요일 오전 10:48:36
받는 사람: Discuss G
Hey Barry,
what I usually do is run "arecord -L" and pick one of the listed
things.
Best regards,
Marcus
On Wed, 2019-07-03 at 21:48 -0400, Barry Duggan wrote:
> I am trying to use a C-Media USB Audio Device as the audio source in
> my
> flow graph. So far, I have not had any success with the de
Uh, yeah.
That thing always confuses me, too. The "resampling ratio" is the
inverse of what you'd expect, i.e. to interpolate by 10, set it to 0.1.
Note that for extreme resampling ratios (r << 1 or r >> 1), it might
make sense to split the resampling between a rational resampler and
this MMSE re
