Hi Lou,
that's a pretty good application of the spectrum, I agree. One could
certainly modify the freq_sink to do that, however, as it is now, the
PSD calculation (based on the fft result) is done in a single VOLK
kernel, 32fc_s32f_x2_power_spectral_density_32, which probably has some
performance
Could this be modified to, optionally, do the (complex) average after the
FFT. That would give a coherent average assuming no samples are dropped
prior to FFT. Nice for digging signals out of the noise compared to a
normal spectrum analyzer type average.
Lou
Marcus Müller-3 wrote
> Because I
There's different ways to address this:
- The channel-power-calculator can send the calculated power downstream.
This can either happen as a message, or as a stream.
- You could query the value from the other block, e.g. by having a
reference to the block and accessing a getter (that's sometimes
n
Hi,
Is it possible to share a variable between two blocks in GNU Radio such
that block A modifies its value and block B reads it. Block A that modifies
the value is a downstream block. I have a block called CSMA and it has a
msg input port. Whenever it receives a msg, its corresponding msg handler
Tried that already a few times and nothing. Is there any so called cash
where cmake can mix something up. I was recently building gnuradio 3.7.8
and I think that administrator also removed all my manually installed
packages and did package reset to default.
On Thu, Nov 5, 2015 at 6:17 PM, Marcus M
Ha! good catch; after you added BLOCKS to the REQUIRED_COMPONENTS list
in CMake, you might want to completely delete the build/ folder and
start anew. CMake occasionally misses such changes.
Best regards,
Marcus
On 11/05/2015 06:14 PM, Nemanja Savic wrote:
> Maybe this can help somebody to help m
Maybe this can help somebody to help me. So, I have my .so library
installed (from the time when building was possible ;)) Now, when I run ldd
on installed and built library I get following:
existing:
[savi_ne@ts-070046nl build]$ ldd /usr/local/lib64/libgnuradio-TMS.so
linux-vdso.so.1 => (0x00
Hm, that really was my hope. Sorry, I'm out of ideas.
On 11/05/2015 05:39 PM, Nemanja Savic wrote:
> everything looks fine with that
>
> [savi_ne@ts-070046nl build]$ ldd lib/libgnuradio-TMS.so
> linux-vdso.so.1 => (0x7ffd93fa1000)
> libboost_filesystem-mt.so.5 => /usr/lib64/libboost_f
everything looks fine with that
[savi_ne@ts-070046nl build]$ ldd lib/libgnuradio-TMS.so
linux-vdso.so.1 => (0x7ffd93fa1000)
libboost_filesystem-mt.so.5 => /usr/lib64/libboost_filesystem-mt.so.5
(0x7fccb7e5f000)
libboost_system-mt.so.5 => /usr/lib64/libboost_system-mt.so.5
(0x0
First, if you run the generated top_block.py you see
Traceback (most recent call last):
File "./top_block.py", line 99, in
tb = top_block()
File "./top_block.py", line 71, in __init__
self.tab_grid_layout_0.addWidget(self._show_text_0_win, 1000,110)
File
"/usr/local/gnuradio/lib64
Hm, make sure your program really uses those; "ldd libgnuradio-TMS.so"
might point to the right places.
On 11/05/2015 05:21 PM, Nemanja Savic wrote:
> Anything else I could try with this silly problem? I am sure 100% that
> libraries are in /usr/local/lib64
>
> On Thu, Nov 5, 2015 at 5:12 PM, Nema
Does it get better when you do blocks::file_sink_base(filename, true,
false)?
On 11/05/2015 05:04 PM, Nemanja Savic wrote:
> This is rather strange. This module was working ok, I just didn't
> build it for quite some time.
> I use file_sink_base as a base class for one of my file sinks that has
>
Anything else I could try with this silly problem? I am sure 100% that
libraries are in /usr/local/lib64
On Thu, Nov 5, 2015 at 5:12 PM, Nemanja Savic wrote:
> In my gnuradio 3.6.5.1 file_sink_base constructor takes otwo arguments,
> filename and bool.
>
> On Thu, Nov 5, 2015 at 5:06 PM, Marcus
This is rather strange. This module was working ok, I just didn't build it
for quite some time.
I use file_sink_base as a base class for one of my file sinks that has some
kind of history buffer inside.
And, the structure of that block is identical as the structure of file_sink
that comes with GR.
In my gnuradio 3.6.5.1 file_sink_base constructor takes otwo arguments,
filename and bool.
On Thu, Nov 5, 2015 at 5:06 PM, Marcus Müller
wrote:
> Does it get better when you do blocks::file_sink_base(filename, true,
> false)?
>
>
> On 11/05/2015 05:04 PM, Nemanja Savic wrote:
>
> This is rather
sorry ,forget to reply the list
thank you
--Ekko
2015-11-05 23:15 GMT+08:00 Marcus Müller :
> Hi Ekko,
>
> please reply to the list, not to individual people :)
>
> 1.i can use source block generate digita signal,
>
> Every block in GNU Radio is a digital block (your computer is a digital
> d
Hi Ekko,
please reply to the list, not to individual people :)
> 1.i can use source block generate digita signal,
Every block in GNU Radio is a digital block (your computer is a digital
device)!
> 2.i am not sure whether "chunks to symbol"block make the job of
> digital-to-analog
no. Digital to an
Hi Nemanja,
file_sink_base only has a parameterless public constructor these days
(from gr-blocks/include/.../file_sink_base.h)
47 protected:
48 file_sink_base(const char *filename, bool is_binary, bool append);
49
50 public:
51 file_sink_base() {}
52 ~file_sink_ba
Hi Ekko,
> i connect the usrp“tx and rx pin whit a wire to imitate that no
> error,so i think the ber should be zero.
If you still think that, you have understood neither mine nor Marcus
Leech's email; I'm afraid I can only ask you to read them again.
> my problem is that if i want to use uhd_sink
hello marcus
i connect the usrp“tx and rx pin whit a wire to imitate that no error,so i
think the ber should be zero.
my problem is that if i want to use uhd_sink and source to test this grc,is
there some other work i need to do compare with the connect of virtual sink
+source.
this is my question
hello all
i am using
https://github.com/gnss-sdr/gnss-sdr[text_sink],
but there is nothing show when i use text_sink
this is my grc file,
is there some one who konw how to use this demo
another question ,i want to test the example of DTV in gnuradio ,but there
is only transmitter,where i can
hello all
i am using
https://github.com/gnss-sdr/gnss-sdr[text_sink],
but there is nothing show when i use text_sink
this is my grc file,
is there some one who konw how to use this demo
another question ,i want to test the example of DTV in gnuradio ,but there
is only transmitter,where i can
Hi all guys,
i have encountered a new problem which was not present before. I have my
old GR module (out of tree) for years. Yesterday I wanted to change
something and couldn't build it cause of the linker error.
libgnuradio-TMS.so: undefined reference to
`gr::blocks::file_sink_base::file_sink_ba
Hi,
here is a simple photo representing my block. The block is hierarchical and
consists of a few deframers. When deframers decode correct message, they
are supposed to send message to db_logger who write information from the
message into a database. Deframers are written in c++ while db_logger is
Hi Larry,
please answer to the list, and not to the individual people, if possible :)
The quadrature demod gives you the "instantaneous" frequency between
consecutive samples. Mathematically, it's conjugate multiplication of
the samples with a single-sample delayed version of themselves, followed
Hi Larry,
in addition to what Kim said:
You'll have to consider that what the Qt frequency sink and what a
frequency to voltage converter does are pretty different things:
* The freq-to-volt converter takes a signal and (ideally) gives you a
reading determining the (somehow defined) stronges
26 matches
Mail list logo
