基于Turbo码的信息隐藏技术的研究

Study of a kind of information hiding technology based on turbo code

文章首先介绍了Turbo码的编码结构和用于Turbo码迭代译码的最大后验概率译码算法;然后提出了在几种不同方案下Turbo码的信息隐藏技术,对隐藏信息前后的译码效果进行了理论分析;最后通过实验对各种隐藏方案进行性能比较。

The paper first propose coding structure of turbo code and the maximum a posteriori algorithms which is used to iteratire decoding .secondly, The paper introduce some kinds of information hiding technology which based on different condition, also.compare the difference between the turbo code which have hidding information and the turbo code which have not hidding information in theory. Last,we simulate kinds of technology by experimetation to get some conclusion.