kopia lustrzana https://github.com/jamescoxon/dl-fldigi
9ed6cc3336
* change the distance between early, prompt, and
late accumulators to be an integer number of samples.
* noise and QSB processing
- average the accumulator values over a longer time period
- tighten bit tracking feedback loop
.signal lock takes a little longer
* make the AFC window a little wider to deal with some signals.
* instead of requiring 5 consecutive correct characters
to start decoding, store a stream of bit confidence values and
require 9 good ones out of 14 total. FEC can take care of the rest.
* add FEC calculations to do single bit permutations on
bad characters, flipping the bit with the lowest confidence value.
* code cleanup - remove unused variables.
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