The method of selecting the appropriate code LDCP

摘要

1. A method for estimating the occurrence probability LDPC code errors, comprising: receiving the word generated using the LDPC code; Image analysis to determine whether includes a first feature word, which is indicative of the first known effects on the probability of error; ianaliz words to determine whether includes a second feature of the word, which is the second well-known measure of the impact on the probability of occurrence oshibki.2. A method according to claim 1, further comprising: a modified construction of a Tanner graph associated with the word; determining a modified wrap Tanner graph, the first feature is indicative of the first known exposure to the risk of error is obhvatom.3. A method according to claim 2, wherein: the second feature is indicative of the second known effects on the probability of occurrence of errors is the number of pairs of adjacent non-zero symbols with adjacent non-zero bits, connected by an edge in the modified Tanner graph; ianaliz words to determine whether includes a second word feature comprises determining whether a word includes more than a threshold number of pairs of adjacent non-zero symbols with adjacent non-zero bits, connected by an edge in the modified Tannera.4 graph. A method according to claim 2, wherein: the second feature is indicative of the second known effects on the probability of occurrence of errors is the number of non-zero bits adjacent pairs of adjacent non-zero symbols with adjacent non-zero bits, connected by an edge in the modified Tanner graph; ianaliz words to determine whether includes a word