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[Discuss-gnuradio] QPSK correlator
From: |
Андрей Родионов |
Subject: |
[Discuss-gnuradio] QPSK correlator |
Date: |
Wed, 28 Feb 2018 11:13:04 +0000 |
Hi community!
I’m writing a QPSK demodulator for Meteor-M satellite. I followed tutorial on
https://wiki.gnuradio.org/index.php/Guided_Tutorial_PSK_Demodulation and got
the bits, which I was able to parse and restore the image. However I’m using
sync word correlator with only 4 phase ambiguities (I wrote it myself).
According to this doc:
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19890016010.pdf there are
8 phase ambiguity possible.
My question is: if there any block in gnuradio, which could resolve all 8 phase
ambiguities?
Best Regards,
Andrey
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Андрей Родионов <=