LDPC非规则二进制校验矩阵生成函数，可生成任意规格的校验矩阵-Irregular LDPC binary check matrix generating function, can generate arbitrary specifications checksum matrix

非规则重复累积码(IRA)在AWGN信道的编译码C程序，译码算法BP算法。程序用txt文档保存。-Code irregular repeat accumulate (IRA) in the AWGN channel codec C procedures, BP decoding algorithm. Txt document with the preservation process.