[Discuss-gnuradio] Re: Strange constellation appears on pi/4 dqpsk and dqpsk thru scope_sink

[Guanbo Zheng]

Hi,

I also have the similar problem at the receiver side, why trying to obtain the constellation of DQPSK.

From constellation sink block, I can obtain much better constellation. But, using scope sink, it shows a mess.

As far as I went through the code of constellation sink, it seems like conducting additional  synchronization before plotting the results.

Anyone can explain more about the detail of constellation sink in GRC block?
And how can we output the data in constellation sink?

Many thanks
-- 
Regards,
Guanbo