Re: Simulated DBPSK mod/demod

Adding a Polyphase Clock Sync and CMA Equalizer after the Constellation Modulator solved my problems. 

On Thu, Feb 6, 2020 at 12:46 PM Andrew J Wolfram <ajwolfram@gmail.com> wrote:

Hi All,

I'm trying to simulate DBPSK modulation and demodulation in GNU Radio 3.8, but my output is not the same as my input, so I must be doing something wrong. Please see the attached flow graph. My input is a repeating vector (1, 0), but my output is always (0, 0, 1, 0, 0, 0, 0, 1) or some shifted version of that. Where am I going wrong?

Thanks,

Andrew