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Altera_Forum's avatar
Altera_Forum
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19 years ago

Viterbi - Trellis Coded Modulation

I have been trying to understand the TCM section in the Viterbi user guide. Anyone who can help me out?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

I have used this core. The TCM is simply a shift register with taps going through an XOR (modulo 2). What the taps are depends on the code used in the Viterbi Decoder.