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Re: using gr-specest/gr-inspector


From: Jeff Long
Subject: Re: using gr-specest/gr-inspector
Date: Fri, 14 May 2021 08:37:24 -0400

The general approach is to make a new OOT module for the version you want, using gr_modtool, then move code from the old module to the new module as needed.

On Fri, May 14, 2021 at 7:25 AM Aditya Arun Kumar <adityaarunkumarphi@gmail.com> wrote:
Thanks Marcus. I was also thinking the same thing. Can you please link me to some porting guides, I am new to this and the last time I tried I failed miserably.



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On Fri, May 14, 2021 at 3:21 PM Marcus Müller <mueller@kit.edu> wrote:
Hi Aditya!

I think the most straightforward way would be to port the AMC block to 3.8. I wasn't aware
of it existing only in maint-3.7!

Best regards,
Marcus

On 14.05.21 00:50, Aditya Arun Kumar wrote:
> Hi Marcus,
> Thanks for the reply. The reason I am sticking with GRC 3.7 branch is that the AMC block
> is present only in the gr-inspector 3.7 branch, which requires a CNN graph for input, I
> have no issues in running the 3.8 branches of the OOT. So, if this is the case is there a
> way I can import a TensorFlow graph model into GRC3.8 because the inspector branch really
> says it is not present.
>
>
>
> Mailtrack
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> 05/14/21, 04:14:53 AM         
>
>
> On Fri, May 14, 2021 at 4:08 AM Marcus Müller <mmueller@gnuradio.org
> <mailto:mmueller@gnuradio.org>> wrote:
>
>     Hi Aditya,
>
>     you shouldn't use GNU Radio 3.7 for new things in 2021, it's a dead end; we don't develop
>     this any further, and it will not work on newer machines; there's nothing we can do about
>     that.
>
>     Both gr-inspector as well as gr-specest work with GNU Radio 3.8, if you check out their
>     maint-3.8 branch.
>
>     GNU Radio 3.8 is easily installable on any reasonably modern operating system, so that's
>     what you should do.
>
>     Neither of this has anything to do with Neural Networks, so you're on your own there.
>
>     Best regards,
>     Marcus
>
>     On 13.05.21 23:38, Aditya Arun Kumar wrote:
>     > Hello,
>     > I am working on AMC(Automatic Modulation Classification) using GRC. After some digging
>     > around I found that gr-inspector along with gr-specest will work for this. I also found
>     > that while using gr-inspector I need to check out the maint-3.7 branch (gr-inspector for
>     > maint3.7 says that a minimum of GRC 3.7.9.3 is required) for me to load the tf
>     models. Now
>     > I face problems in 2 places,
>     >
>     >
>     > 1. gr-specest is not really available for 3.7 at least in the kit-cell branch, but
>     > available here <https://github.com/robertwatsonbath/gr-specest-3.7
>     <https://github.com/robertwatsonbath/gr-specest-3.7>>. So I install that and
>     > try to run the example flowgraph I get "Module not found: _swig_specest", the same
>     > happens when I try to do it from the terminal as well. After this, I found this
>     > <https://signalsintelligence.wordpress.com/
>     <https://signalsintelligence.wordpress.com/>> blog that talks about the problems I have,
>     > but the problem is I cannot find any of the links in git-repo as most of them are dead.
>     > Now my question in this place is there a specific gr-specest branch for GR3.7.
>     > 2. The second part of the problem is where can I find a pre-trained CNN model that I can
>     > import and use (I am still learning the NN parts). If I cannot find is there a
>     > well-documented t project that I can use to generate my CNN graph that I can import
>     as AMC
>     > into gr-inspector tensor-flow block. 
>     >
>     > But whatever it looks like I am going to need a CNN for mod rec at the moment, but what
>     > puzzles me is I cannot find gr-specest anywhere just to understand some 3D visualization
>     > as well for 3.7. Any help in this aspect will be really helpful.
>     >
>     > --
>     > S. Aditya Arun Kumar
>     >
>     >
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>     >
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>     > 05/14/21, 02:54:51 AM         
>     >
>
>
>
> --
> S. Aditya Arun Kumar
> +919123517465



--
S. Aditya Arun Kumar
+919123517465

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