Hi micro7311 - GRC scripts are placed typically into
${prefix}/share/gnuradio/grc/blocks -- in your case, looks like
${prefix} == "/usr". Without having access to your OOT module or any
other info about it, the best advice I can give is to check to make sure
our OOT install ${prefix} matches that
The histogram sink calculates a histogram over the N last samples, with
N set by configuring "number of points"; hence, if that is e.g. 1024
(default value), all counts must be ≤1024 and ∑(counts)=1024.
By the way, your block logic is a bit redundant: GNU Radio gives you
then
Hi Yan,
The threshold block converts your signal to 1 if you've been above the
"high" value, unless it has fallen below "low" again. Everywhere else,
it's 0. See the "documentation" tab in the block properties, or the GNU
Radio doxygen manual [1].
But: Parseval's theorem states that energy in
Hi, thank for the detailed response to my question. I forgot to attach the
OOT modules. They are attached here.
On Fri, Feb 12, 2016 at 7:22 AM, Michael Dickens [via GnuRadio] <
ml-node+s4n58160...@n7.nabble.com> wrote:
> Hi micro7311 - GRC scripts are placed typically into
>
Hi Yan,
> My original intention is to test whether there are signal transmission
> in a certain spectrum band. So at first I want to use energy detection
> and other methods to test which band has signal, and then compare the
> probability of detection in different SNR.
>
Unless your FFT is sized
Hi all,
Thank you Marcus for your kind reply.
My original intention is to test whether there are signal transmission in a
certain spectrum band. So at first I want to use energy detection and other
methods to test which band has signal, and then compare the probability of
detection in
> 2- Select the probability of detection you want, lets say 95% (0.95);
> 3- Sort the energies you calculated in 1 in ascending order;
> 4- You threshold will the value of the energy at the position
> N*(1-0.95), where N is the length of your sorted list in step 3.
and there you go, a receiver
Hi Yan,
about the detection probability I can give you some hints.
When I implemented an energy detector in GNU Radio I did the following
algorithm to obtain a good threshold value:
1- Calculate the energy of the channel when I know it was occupied over a
period of time;
2- Select the
On Fri, Feb 12, 2016, at 08:32 AM, micro7311 wrote:
> Hi, thank for the detailed response to my question. I forgot to
> attach the OOT modules. They are attached here.
All works nicely for me, though admittedly I'm running on OS X & you're
not (or, looks like not). Here's a screenshot of one of
I just heard about the meeting in Zurich on 8 March:
http://www.meetup.com/pyzurich/events/228746248/
and I may be able to come along, I can bring a dual band FM handheld
transceiver if that will be useful.
Regards,
Daniel
___
Discuss-gnuradio
Perhaps this would have been better addressed to John Corgan, but putting it in
the forum will allow others to possibly track progress if made.
In the latest GNU Radio Live SDR iso version 3.7.9 the Intel e1000e Ethernet
driver is version 2.3.2 from 2013. A number of our newer laptops,
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