| 摘要 |
Viterbi decoding techniques that include multi-stage Viterbi decoding of encoded signals. Such techniques include radix-4 two stage decoding. The encoded signals may include soft decision signals. A Viterbi decoder may include a branch metric generator, a trellis interconnect, an add-compare element, a path metric memory, and a traceback element. The add-compare element may include a plurality of add- compare-select units that each select two trace bits per clock cycle. The traceback element may write, decode, and trace stored trace bits to decode the encoded signal. |
