Hi,
For reading your data from file, you need to have a binary data file. Libre
office file has a header and after that your text " ", in which "1"
or "0' is a char not a bit!
GNURadio bit generation sources assume "0" is a byte of bits "" and
"1" is a byte of bits "1000". So y
On Thu, Jan 15, 2015 at 1:41 PM, Salman Dinani wrote:
> Hi to all,
>
> Thanks very much to all of you for your valuable suggestions.In accordance
> with your suggestions, I experimented with my designed DQPSK system and got
> few problems which I am listing down.All the referenced figures are
> at
I believe that even with the MF you'll have ISI because you have 4
samples/symbol in this example.
Only if you down sample at 1 sample/symbol (at the right epoch) will you
get rid of the ISI and get a clean QPSK.
best
Achilleas
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On Wed, Jan 14, 2015 at 8:50 AM, Brian Padalino wrote:
> It's a constellation plot for sure - says it right on the block in the
> PNG, but it's all internally generated anyway. There should be 1
> perfect phase, then 3 out of phase points. No noise - no
> phase/frequency offset. Timing shouldn
It's a constellation plot for sure - says it right on the block in the
PNG, but it's all internally generated anyway. There should be 1
perfect phase, then 3 out of phase points. No noise - no
phase/frequency offset. Timing shouldn't be an issue here even if it
were a normal plot.
I think the i
On 01/14/2015 04:56 AM, Salman Dinani wrote:
> Hi to all,
>
> I am a beginner in using GNU radio(GRC). I have made a DQPSK transmitter
> using the blocks of GNU radio (attached Figure QPSK_1). when I connected
> the constellation plot with it, It gave me the a very scattered
> Constellation Plot I
Hi to all,
I am a beginner in using GNU radio(GRC). I have made a DQPSK transmitter
using the blocks of GNU radio (attached Figure QPSK_1). when I connected
the constellation plot with it, It gave me the a very scattered
Constellation Plot Instead of four Clean Constellation Dots (attached
Figure
