PEG算法是在编码构造方面的一种有效的方法，它基于Tanner图，能有效的增大围长，使得构造出来的码的性能更好-PEG algorithm is constructed in terms of an effective coding method, based on Tanner graph, which can effectively increase the girth, making the code constructed with better performance

tanner tools calculator and corrector uisng this you can easyly use tanner tools