中文说明：最大似然（ML）准则和最大后验概率（MAP）准则，LDPC码的完整的编译码，对于初学matlab的同学会有帮助，可以得到很精确的幅值、频率、相位估计，DC-DC部分采用定功率单环控制，是机器学习的例程。
English Description：
Criterion of maximum likelihood (ML) and maximum a posteriori (map) criterion, the encoding and decoding of LDPC codes, for the beginner will help matlab students can obtain very accurate amplitude, frequency and phase estimation and DC-DC part of the constant power single loop control, machine learning routines.