中文说明： 通过matlab代码，鲁棒性好，性能优越，ldpc码的编解码实现，基于分段非线性权重值的Pso算法，毕业设计有用，预报误差法参数辨识-松弛的思想。
English Description：
Through the MATLAB code, robustness and superior performance, encoding and decoding of LDPC codes implementation, Pso algorithm based on piecewise linear weights, graduation useful prediction error method of parameter identification-relaxing thoughts.