Update README.md

some description of the algorithms
jmfriedt · Apr 6, 2020 · 575452c · 575452c
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 # meteor-m2
 Meteor-M2 signal analysis
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+extrait.s is a sample data acquisition: soft bits encoded as signed 8-bit integers (char)
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+go_viterbi1.m (GNU/Octave) will search for all possible permutation of the header bits to identify the QPSK phase rotation in the dataset
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+go_viterbi2.m aims at demonstrating how the synchronization header is encoded (demonstrated with some dummy sentence to justify the correlation word used in go_viterbi1.m)