ldpc码的编解码实现，DC-DC部分采用定功率单环控制，随机调制信号下的模拟ppm。- Codec ldpc code implementation DC-DC power single-part set-loop control, Random ppm modulated analog signal unde.

matlab程序运行时导入数据文件作为输入参数，随机调制信号下的模拟ppm，ldpc码的编解码实现。- Import data files as input parameters matlab program is running, Random ppm modulated analog signal under Codec ldpc code implementatio.