Block Turbo Decoder Design. Hu Dongwei. Error Correcting Codes. Classic Block Codes BCH RS RM Convolutional Codes (Viterbi)
Hard Decided Sequence:
Step 1: find p least reliable positions.
Step 2:generate test patterns:
Step 3: decode the test patterns and form the code set C
Step 4: find the minimum distance code D.
Computing the soft output corresponding to the jth bit:
In the decoded set C, if we can find a code word that complements with D at the jth bit position and has minimum distance with R
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