Hi Ramazan - The "tP" means that a timed transmit came too early. Say you want
to transmit exactly every second (via timed samples), but you provided UHD with
a burst of 2 seconds of data. You will have a new timed command before the
first burst is finished. Hence, UHD will print "tP". I'm
Hi Michael,
We have implemented one channel OFDM using rational resampler and pfb
synthesizer and multiply tag block. It's working and we can receiver
packets over the air. Thanks for suggestions.
We have also tried to implement two channels. We have resampled OFDM
signals to 500KHz using
Hi Ramazan - The "#f" generally indicates that you the Rx SNR isn't high enough
... nearly, but not quite. The sync symbols are being detected, but the header
itself can't be decoded cleanly (CRC fails).
In your "test" script, you don't have to worry so much about gains. When using
actual
Hi,
I guess, the receiver cannot synchronize to our transmitters. Is there a
way for using occupied carriers for synchronization instead of all
carriers in schmidl cox?
Best regards.
On 24.06.2019 15:00, Ramazan Çetin wrote:
Hi Michael,
Firstly, thank you for your suggestion. I have
Hi Ramazan - Hmmm ... I'm not coming up with anything greatly useful when using
a single OFDM block for Tx. Alternatively you could use a 2 channel PFB
synthesizer on Tx, with 2 separate OFDM Tx and feed them into the synthesizer.
On Rx use a PFB channelizer and take its 2 outputs to 2 separate
Hi Ramazan - My primary wondering about your specific OFDM setup is whether the
sync preambles are abiding by your carrier separation (256 carriers: -120:-1
for one Tx and 1:120 for the other). It certainly looks from the images that
the payload portion is working as you desire. Depending on
On Thu, Jun 20, 2019 at 6:24 AM Ramazan Çetin
wrote:
> At the end, i decided to give some gap between transmitters. So, 36 to
> 90 and -36 to -90 are assigned to transmitters. But, result is same. I
> have attached two pictures of spectrum. They represents state of one and
> two transmitters are
