[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
## Re: [Discuss-gnuradio] Pi/4 Mod-Demod

**From**: |
Sylvain Munaut |

**Subject**: |
Re: [Discuss-gnuradio] Pi/4 Mod-Demod |

**Date**: |
Fri, 10 Oct 2014 12:12:46 +0200 |

Hi,
>* I’m interested in, and looking into the Pi/4 QPSK modulation technique*
>* (http://en.wikipedia.org/wiki/Phase-shift_keying#.CF.80_.2F4.E2.80.93QPSK).*
>
>* Has anyone worked on this before and does anyone have any blocks or code*
>* that I could use for reference while making my own? Any help, links, blocks*
>* or code would be greatly appreciated!*
Just rotate it by pi/4 using a rotator block, then treat it as QPSK
(for which there are GR blocks).
It's not a GR block but I work with pi/4 whithin the osmo-gmr project.
What's the target application ? Is it bursts or a continuous signal ?
Cheers,
Sylvain