t".format(dir="/samples",
date=20150609,hour=8,minute=59,seconds=25.33212324)
will give you
/home/marcus//samples/20150609-08-59-25.332123.dat
notice the length of each number and the padding with zero of the hour.
Possibly, GRC tries to figure out whether what you've ent
Hi Siva,
the problem is that you most probably want to do
apt-get install gnuradio
, right?
Since programs only work with the library versions they were linked with
at build time, Ubuntu must install Ubuntu's old UHD version. That's a
bad thing -- you now have 3.8.4 (possibly from our website o
>
> should just work; for more complex things, try python's (quite frankly
> awesome) string formatting language
>
> "/home/marcus/{dir}/{date}-{hour:02d}-{minute:02d}-{seconds:02.6f}.dat".format(dir="/samples",
> date=20150609,hour=8,minute=59,seconds=25.33
;+ str(time)
>
> should just work; for more complex things, try python's (quite
> frankly awesome) string formatting language
>
>
> "/home/marcus/{dir}/{date}-{hour:02d}-{minute:02d}-{seconds:02.6f}.dat".format(dir="/samples",
> date=20150609
i Jeon,
>>
>> the input fields just take "normal" python, so
>>
>> "/my/file/path"+ str(time)
>>
>> should just work; for more complex things, try python's (quite frankly
>> awesome) string formatting language
>>
>>
I am having trouble reading a file and putting it as a variable or some way
so that the USRP Source block will read it and evaluate each item. I'm
using a file source and i tried connecting to a message sink, but I'm stuck
there because the output of the sink does not match the input of the USRP
So
I believe this is a very common pattern for decoding simple protocols
(once you have the bits)
Here's an example
https://github.com/jmalsbury/gr-tnc/blob/master/lib/hdlc_deframer_impl.cc
On Tue, Jun 9, 2015 at 2:22 PM, Martin Braun wrote:
> On 06/08/2015 07:16 PM, Anil Kumar Yerrapragada wrote:
On Tue, Jun 9, 2015 at 8:31 AM, Ashraf Younis wrote:
> I am having trouble reading a file and putting it as a variable or some
> way so that the USRP Source block will read it and evaluate each item. I'm
> using a file source and i tried connecting to a message sink, but I'm stuck
> there because
On Tue, Jun 9, 2015 at 9:17 AM, Ashraf Younis wrote:
> Thank you for responding. I'm still new to GRC, so I don't know how to go
> about doing that. Would I have to write a .py file? Then how would I import
> it to GRC?
>
Please keep replies on the list.
So I was about to reply something along
Hi everyone，
I cloned the gr-cdma(https://github.com/anastas/gr-cdma). But I can't
compile the code.
I followed the complie instructions.
After I typed "make", I got the following errors:
[ 47%] Generating doxygen xml for cdma_swig_doc docs
/bin/sh: 1: cdma_swig_doc_swig_docs/Doxyfile: Permission
Hello Franklin,
this looks like you, at one point, worked as a different user on that
directory (possibly root?).
You should get a copy of the source code that your user has permissions
to read.
Best regards,
Marcus
On 06/09/2015 04:18 PM, 苏张 wrote:
> Hi everyone，
> I cloned the gr-cdma(https:/
This helps a lot. Thank you. I hope I'm adding this reply to the list
correctly.
On Tue, Jun 9, 2015 at 10:12 AM, Tom Rondeau wrote:
> On Tue, Jun 9, 2015 at 9:17 AM, Ashraf Younis wrote:
>
>> Thank you for responding. I'm still new to GRC, so I don't know how to go
>> about doing that. Would I
On 09.06.2015 06:40, bh...@web.de wrote:
> hello,
> i have created a flowgraph (fig_0.png) for a simple ofdm link but it
> works only in parts. the first row (random_source -->
> gt_gui_constellation_sink) works perfect but the entire rest does not.
>
> now two questions:
>
> 1) stream_to_tagge
Did you find the solution?
regards
Baokun Liu wrote
> Hi guys,
>
> I am playing with gnuradio companion. I have a question on wav file.
>
> I play like this first (the samp_rate set to 32k)
>
> *Audio Source ---> Wav File Sink;*
>
> I save the file as test.wav. It sound well.
>
> Then, I pla
Hi fffdddooo,
Baokum Liu asked that two years ago. Some things have changed since
then; do you have a question that we might help you answer?
Best regards,
Marcus
On 06/09/2015 08:46 PM, fffdddooo wrote:
> Did you find the solution?
>
> regards
>
> Baokun Liu wrote
>> Hi guys,
>>
>> I am playing
Well. I read the workaround. The problem is if you use file source and file
sink instead of wav file source and wav file sink, you are not generating a
wav file. You can name it *.wav, but it isn't a wav file at all.
What I want to do is generating a wav file wich can be playd with any wav
player (
Hi fffdddoo (is that really the name by which we should address you?),
I'm guessing you try to save audio directly from the audio source to a
wav file, right?
So, my blind guess is that Baokum wrongly configured the audio source
and simply nothing came out of it.
For example, no soundcard normall
I'm trying to send my recordings from a USRP Source(hardware: NI B200) to a
database I set up. I have been searching the internet for hours and I have
come up with nothing. There was one post that mentioned it, but only the
fact that there is a way to have MySQL and GRC working together. Is there a
Yeah, write a script to insert it into a database. Start by importing
gr and pyodbc...
Which is just about as unhelpful as your question. But seriously:
- what do you intend to record? (raw samples, filtered signal, decoded
messages, ...)
- how much data do you plan to record, and how long do you
Thank you for responding. I'm new to all of this, including database. I am
recording what you called metadata; time, location, frequency, power for
about 30 minutes. I think that also answer the question about schema. I
just started learning how to write functions in python, and I went through
the
That doesn't necessarily answer the question about schema - you could
have a whole bunch of columns, one for each frequency bin across a
band, or a shorter record of power level on a frequency at a
particular time.
Have a look at uhd_spectrum_sense.py for a start. It emits text
records with many o
You can address me by Fernando, it's easier to pronounce ;-)
I'm trying to save audio from the audio source to a file or from a signal
source 1Khz for instance.
I've tryed different things, and different data rate (I've tried 44100 also)
and is always the same eror
Generating: "/home/ubuntu/top_b
As previously mentioned, I've been working on adding python and numpy to
the existing GNU Radio android version (GrAnd). I've named the
resulting Frankensteinian creation "GrAndPy".
The goals of the project (that have been successfully achieved so far) were:
a) build using a solid proper founda
Here's an example that generates a wave file that is playable by both
gnuradio and mplayer
On Tue, Jun 9, 2015 at 2:49 PM, Fernando wrote:
> You can address me by Fernando, it's easier to pronounce ;-)
> I'm trying to save audio from the audio source to a file or from a signal
> source 1Khz for
Hi list,
I am selling my USRP1 with following configuration:
USRP1 with 52Mhz modified clock
DBSRX1
2 small 0db gain antenna
USB cable and power adapter
Above items are working in excellent condition, they are not useful for me
now thus may be useful for some one else
Please contact me for price a
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