3-5循环移位码是LDPC码准循环码中一种典型的构造校验矩阵的方法，较小的（155 64）码通常也是对比测试其他码的性能好坏的重要测试标准，程序详细描述了构造的步骤和方法，结果是采用AList的结果存储方法，译码性能可以由BP迭代译码直接得出-3-5 cyclic shift LDPC codes are quasi-cyclic codes in the code structure of a typical calibration matrix method, the smaller (155 64) code is usually also a comparison test the performance of other codes of good or bad important testing standards and procedures detailed describes the steps and methods of construction, the result is the result of storage method used AList, decoding performance can be obtained directly from the BP iterative decoding