After all this might be an expected behavior. Since the devices have
different clocks, they sample the medium at different time
instances,leading to this "distortion" of the signal. That's why this only
happens when the one USRP transmits and the other receives, and not when
the same usrp transmits
Στις 13 Ιουν 2017 10:22 μ.μ., ο χρήστης έγραψε:
In the two-USRPs scenario, one of the USRPs is transmitting, and one is
receiving?
Yes. That's the problematic scenario.
Are they "through the air" or over a cable. If over a cable, how much
attenuation has been added to the cable.
They are thro
In the two-USRPs scenario, one of the USRPs is transmitting, and one is
receiving?
Are they "through the air" or over a cable. If over a cable, how much
attenuation has been added to the cable.
On 2017-06-13 11:16, Manolis Surligas wrote:
> Ok lets explain a little bit more what actually you
Ok lets explain a little bit more what actually you observe. Each burst
is a training sequence that has a duration of 64 samples and then 1000
zero samples. This is generated using a vector source block repeatedly.
As you can see in the ok.jpeg all sequences are exactly the same. In the
other p
I'm having a hard time seeing a significant functional difference
between the two. Could you perhaps explain?
Also, maybe a diagram showing the two configurations?
Do you get any error messages during a run?
Are you doing reception on the two USRPs within a single flow-graph, or
two separate
Thanks, George.
Two things:
Could you try updating to the most recent UHD version?
It would be helpful if you provided your .dat files in the form of plots
or graphs, highlighting the areas you consider "distortion". This will
help us help you.
On 2017-06-13 07:23, George Vardakis wrote:
Good evening,
I attach three captures to show you the problem, one with the reference
signal i transmit, one with the received samples when using the same device
for TX and RX and one with the received samples of the one device, when the
second one transmits. I also attach the flowgraph i used for
On 06/12/2017 03:53 PM, George Vardakis wrote:
Hello all,
I have two USRP B210 devices which i use in my MIMO application. When
i use the two of them concurrently in a flowgraph - or different
flowgraphs - i notice that the signal received by the streams of one
of the devices (the one whose s
Hello all,
I have two USRP B210 devices which i use in my MIMO application. When i use
the two of them concurrently in a flowgraph - or different flowgraphs - i
notice that the signal received by the streams of one of the devices (the
one whose serial number is last in lexicographical order) is di
