Hi, Josh,
The complete verbose is as follows:
Traceback(most recent call last):
File "./usrp_spectrum_sense.py", line 277, in
tb = my_top_block()
File "./usrp_spectrum_sense.py", line 144, in __init__
stream_args = uhd.stream_args('fc32')
Attr
Hi,
I notice that the parameter "gr_vector_const_void_star
&input_items,gr_vector_void_star &output_items"in the work() method is
the void* pointer,which don't point to any definite data type.For
example,the output data type is float32 in the upper block and the input
data type maybe int8 in the ne
On Wed, Apr 3, 2013 at 6:08 PM, Vinodhini Ravikumar
wrote:
> Hi,
>
> I have been trying to implement a relay system using DPSK modulation scheme.
> I'm basically trying to replicate the decode and forward method using three
> usrp2 nodes. I generate a .dat file DPSK modulation of a random source
>
On Fri, Apr 5, 2013 at 10:27 PM, vamshi krishna dodla
wrote:
> Hi I need some information regarding frequency response function in the
> interpolator, does that use 1/f roll off or does it use the remez rolloff ?
>
> If it uses 1/f roll off i need some info on how it is done.Kindly provide me
> so
On Fri, Apr 5, 2013 at 1:41 PM, Arturo Rinaldi wrote:
> Hi folks, i have bumped into an error while updating my thesis research to
> the latest version of gnuradio.
> It is a simple tool to estimate the BER of the digital modulation. I had to
> change some lines of code due to the
> fact that now
On Sat, Apr 6, 2013 at 8:37 AM, Gong Zhang wrote:
> Hi,
> I notice that the parameter "gr_vector_const_void_star
> &input_items,gr_vector_void_star &output_items"in the work() method is
> the void* pointer,which don't point to any definite data type.For
> example,the output data type is float32 in
On Fri, Apr 5, 2013 at 6:23 AM, Yingjie Chen wrote:
> Hi guy,
>
> I am currently working on ofdm example. I try to print out the channel
> estimated value d_hestimate on terminal. However, I found each frame number
> followed several sets of channel estimated value. I feel so confused because
> I
On Fri, Apr 5, 2013 at 5:56 PM, Monahan-Mitchell, Tim
wrote:
>> -Original Message-
>> From: discuss-gnuradio-bounces+tmonahan=qti.qualcomm@gnu.org
>> [mailto:discuss-gnuradio-bounces+tmonahan=qti.qualcomm@gnu.org]
>> On Behalf Of Monahan-Mitchell, Tim
>> Sent: Friday, April 05, 201
Hi all,
I'm trying to configure USRP2. So I'm installing gnuradio and uhd. The
error message "Building rtl-sdr...gr-osmosdr build apparently failed"
occured when I used build-gnuradio script to install gnuradio and uhd.
Anyone has any solutions about this problem?
Alternatively, If I want
Hi guys,
Thanks in advance.
In default setting, I wonder if gunradio has followed the 802.11 standand
using 10 short preambles for synchronization or not.
Hope anyone can tell me.
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https://lists.gn
Hi all,
I'm trying to configure USRP2. So I'm installing gnuradio and uhd.
The error message "Building rtl-sdr...gr-osmosdr build apparently
failed" occured when I used build-gnuradio script to install gnuradio
and uhd. Anyone has any solutions about this problem?
Alternatively, If I wa
On Sat, Apr 6, 2013 at 10:01 AM, Yingjie Chen wrote:
> Hi guys,
> Thanks in advance.
> In default setting, I wonder if gunradio has followed the 802.11 standand
> using 10 short preambles for synchronization or not.
> Hope anyone can tell me.
No, it is not. Just a standard implementation of the S
HI , i am doing a project on channel estimation in ofdm . I want to
estimate the SNR of the recievd symbol using the preamble symbol.
Please let me if i can do this in GNU radio.
___
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Discuss-gnuradio@gnu.org
https://lists.gnu
On Saturday, April 6, 2013, Pradeep Borado wrote:
> HI , i am doing a project on channel estimation in ofdm . I want to
> estimate the SNR of the recievd symbol using the preamble symbol.
> Please let me if i can do this in GNU radio.
>
http://gnuradio.org/doc/doxygen/group__snr__blk.html Tom cr
HI,
I am trying to see communication between two usrp's using tunnel.py on
two virtual ports gr0 and gr1, so i am trying to run tunnel.py on 2 usrp's
in my lab using gmsk. I am unable to receive packets in the receiver. so i
was trying to debug. But i was unsure of certain things.
1. There is
HI
can you suggest how to add a question on the new page created by brian on
communication and signal processing topics doubts? I can't find an option
in the page to add a question. I logged in and tried too. But it was the
same.
--
Regards
Karan Talasila
_
On Sat, Apr 6, 2013 at 12:46 PM, Karan Talasila wrote:
> HI,
> I am trying to see communication between two usrp's using tunnel.py on
> two virtual ports gr0 and gr1, so i am trying to run tunnel.py on 2 usrp's
> in my lab using gmsk. I am unable to receive packets in the receiver. so i
> was
On Sat, Apr 6, 2013 at 2:32 PM, Karan Talasila wrote:
> HI
> can you suggest how to add a question on the new page created by brian on
> communication and signal processing topics doubts? I can't find an option in
> the page to add a question. I logged in and tried too. But it was the same.
>
> --
2013/4/6 21:39, Tom Rondeau wrote:
On Sat, Apr 6, 2013 at 8:37 AM, Gong Zhang wrote:
Hi,
I notice that the parameter "gr_vector_const_void_star
&input_items,gr_vector_void_star &output_items"in the work() method is
the void* pointer,which don't point to any definite data type.For
example,the ou
I am selling my USRP N210 in order to downgrade to the B100. I don't need
or use the extra capabilities as I mainly do ham radio experimenting with
it and all signals I would work with are smaller than 8MHz. I am
including the WBX daughterboard with the N210.
The USRP and daughterboard have seen
OK. I have cc it to mailing list.
Here is my response message, looking forward to your reply.
I am doing the experiment over the air. I am not using VERBOSE, but I use
the simliar method, just extract hestimate value from the code and print it
out (cout<<...)directly. However, as I mentioned befo
Thanks for your reply. I still have one question. I try to plot the peak
detection data to observe the the shape of the peak, which seems like
a plateau(square wave).I have done a simulation before in matlab. If only
one preamble exist, when the 1st half of the preamble correlate with 2nd
half, th
I have made a first attempt here:
https://github.com/ajmas/EarthFrequencies
If you have any ideas on how to improve on this, please let me know.
From: aj...@bell.net
To: discuss-gnuradio@gnu.org
Date: Mon, 1 Apr 2013 01:13:17 +
Subject: [Discuss-gnuradio] Radio frequency range description list
Hi Everyone,
The generic_demod block in digital has pfb_clock_sync output connected to
constellation_receiver input.
The pfb_clock_sync has a parameter output SPS. So I assume it represents
the output samples per symbol.
>From reading the code in constellation_receiver, I understand that a symbo
Hi all,
I use build-gnuradio to install gnuradio and uhd. But the error meassgae
"Building rtl-sdr...gr-osmosdr build apparently failed" occurred. Has anyone
successfully installed gnuradio and uhd using build-gnuradio script? Hope
you can help me. Thanks.
_
Hi Community,
Just uploaded some more screen casts on basic things on my channel
http://www.youtube.com/user/2011HPS under the play list
"GNURADIO Experiments for Fun"
http://www.youtube.com/playlist?feature=addto&list=PLwRhd5DzzaXA-poBmKgWv1BQYJT_i6VO2
http://www.youtube.com/watch?v=vVObMECw23A
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