| 摘要 |
The error-corrected decoding method involves detecting error erasure error words in disease symptom data. When the disease symptom data has two error words and a non-erasure word, then the following is calculated: X12=(alpha)21 X22=(alpha)2l2. Where the disease symptom can be represented as following when it has 2 error words: Sk=(sigma)Xj k Yj 0<=k<=3 and X1=(alpha)11, X2=(alhpa)12, 11, 12 is the position of 2 error words, Y1 and Y2 is the value of 2 error words. Let (alpha)211 and (alpha)212 through log calculation, then proceed a shifting calculation, and get position 11 and 12 by following formula: (alpha)i=i if no shifting calculation i/2 if shifting calculation and i is an idol no. i+(2m-1)/2=2m-1+i-1/2 if shifting calculation and i is an odd no. Calculate Y1 and Y2 value by using X12=(alpha)2l1 and X22=(alpha)2l 2.
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