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From: | Christophe Seguinot |
Subject: | Re: building a ccsds transceiver |
Date: | Sun, 31 Jan 2021 18:18:09 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
Hi
Fisrt I should says, cascading blocks without knowing what each
block does should normally don't work.
Personally I never used these ones but they are numerous
inconsistencies.
about decoding
I suspect that your received signal is shifted in frequency. You
won't receive anything as soon as the frequency shift is larger
than 32 kHz
Suggested action:
Hope this helps
Regards
hello , i am trying to build a ccsds transceiver. i got this from someone "Decode CCSDS 27 expects soft symbols, while GMSK demod puts out hard symbols. It would be advisable to use a demodulator that puts out soft symbols, but if you want to keep GMSK demod, then you must convert from char to float".
but after i have connected everything together, the decoding does not work. can someone help me and tell me what i should do?
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