Re: [Discuss-gnuradio] gr_clock_recovery_mm_cc::slicer_45deg...

[Tom Rondeau]

Mattias Kjellsson wrote:
> Hi list,
>
> I have two question regarding slicer_45deg(gr_complex sample) defined in
> gr_clock_recovery_mm_cc.
>
> What is it, and why is it there? Does it have something to do with
> bpsk/qpsk, similar to what has been implemented for the phase- detector
> in gr_costas_loop_cc? I'm asking, because I can't really see where it is
> used. The only other place I could find it in was in gr_lms_dfe_cc,
> which had it's own implementation of the same function...
>
> Best regards
> //Mattias Kjellsson

Yes, it's used for the phase rotation to slice on, depending on how you 
want to slice a QPSK symbol. It's not used right now, but it's there in 
case someone wants to change the slicing rotation.

Tom