本程序是用来查找LDPC parity-check matrix中的cycle的. 以次可以方便知道girth 的情况.-This program is used to find all the cycles in the parity-check matrix of the LDPC codes. By using this program we can also know the girth condition of our codes.

有循环检测，周期性检测，Gabor小波变换与PCA的人脸识别代码，ldpc码的编解码实现。- There are cycle detection, periodic testing, Gabor wavelet transform and PCA face recognition code, Codec ldpc code implementatio.

有循环检测，周期性检测，LDPC码的完整的编译码，应用小区域方差对比，程序简单。- There are cycle detection, periodic testing, Complete codec LDPC code, Application of small area variance comparison, simple procedures.