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Mistakenly omitted including the file "implementation.adoc". 

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6113 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
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Joe Taylor 2015-11-17 16:56:34 +00:00
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8
doc/user_guide/implementation.adoc
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@ -77,3 +77,11 @@ is programmed to ``time out'' and report failure for a given signal if
it takes too long. The choices *Fast | Normal | Deepest* on the
*Decode* menu provide the user with a three-step adjustment of the
timeout limit.
Decoding in JT4 and WSPR modes is basically similar to that for JT9.
The same K=32, r=1/2 sequential Fano algorithm is used for all three
modes. Other details such as tone numbers, symbol lengths,
synchronizing scheme, and subroutine names are distinct for each mode.
The WSPR decoder now uses a two-pass algorithm. Decoded signals are
reconstructed and subtracted from the received waveform, after which a
second decoding pass takes place.