Hello,
I am using USRP-B200 mini, and as I want to use USRP offline, that's why I am
trying to record the transmitted modulated signal through UHD USRP source to
some file, Is it ok to use .txt file for this?
And the problem arise in this is , when the signal is being recorded in a wav
file t
Hi Johannes,
always remember that the "f" suffix after fftw is just for "float",
without that suffix you use the double precision FFTw.
> fftwf_execute_dft(plan, *in, *out)
http://www.fftw.org/fftw3_doc/New_002darray-Execute-Functions.html
> fftwf_alignment_of()
same page, and
http://www.fft
Hello,
On Fri, 2019-06-07 at 12:40 +0530, Maitry Raval wrote:
> Hello,
>
> I am using USRP-B200 mini, and as I want to use USRP offline, that's
> why I am trying to record the transmitted modulated signal through
> UHD USRP source to some file, Is it ok to use .txt file for this?
Again, the file
Yes, the amplitude of a wav file saved with a wav file sink is differnt while I
open it with wav file source
- Original Message -
From: "Marcus Müller, CEL"
To: "maitry raval"
Cc: "discuss-gnuradio"
Sent: Friday, 7 June, 2019 08:15:30
Subject: Re: query regarding wav file recording th
Hi,
ARM support is now pretty much done for libvolk. I'm just waiting to
sign the Contributor licence agreement before I start sending pull
requests. There has been some (legimite) concern that my branch is a
total mess, but don't worry, I will refactor so there will be one pull
request / kernel,
Hi Andrew,
What do you mean by “information from the carrier data”? I’m no OFDM expert,
but my intuition tells me that in a zero-IF architecture (which I assume your
USRP has) any carrier phase information is lost. There’s some results when
googling for “OFDM ranging” maybe that helps.
Cheers,
Well, you can go ahead and at least to a degree enforce a known
relative phase between transmitter and receiver, but yeah, without
extensive external synchronization effort (e.g. GPSDOs – hi there, u-
blox :) ), the receiver phase is random relative to the transmitter's
phase. So, the distance can'
Thanks for your responses! I'm trying to implement what's already been done
with USRPs in this paper (https://ieeexplore.ieee.org/document/8555795),
which is based on this paper (https://ieeexplore.ieee.org/document/5505942).
My apologies if you can't access the full versions of these. In the first
Hi,
I am unsure whether this question fits in this mailing list or the USRP
mailing list but it concerns stream tags so here goes..
I'd like to tune the USRP using a DSP offset without touching the LO
frequency. I'd like to do this using stream tags since it's important that
the re-tune is synchr
On Wed, 05 Jun 2019 at 16:20:12 -0700, Andrew Wolfram wrote:
> I'm trying to alter the file ofdm_txrx.py (
> https://github.com/gnuradio/gnuradio/blob/master/gr-digital/python/digital/ofdm_txrx.py)
> to get phase information from the carrier data so I can calculate an
> approximate distance between
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