小波变换在重建泄漏发射信息中的应用研究

Research for application based wavelet transform on reconstruction of compromising emanation information

介绍了基于Donoho小波收缩算法的泄漏发射信息的重建方法,讨论了非线性阈值函数的设定.对一维水平同步信息、二维文字信息做了仿真实验,结果表明用小波变换提取微弱的泄漏发射信息的方法是鲁棒的和有效的,也是替代传统外同步发生器获取同步信息的新方法.

Introduces a rebuilding method, which is based on the algorithms of Donoho＇s wavelet shrinkage, and discuss the setting of non- linear threshold. After making simulative experiments for the 1-D horizontal synchronous pulse and 2-D letter information. The results show that it is robust and effective to use wavelet analysis to extract very weak compromising emanation information. It is also a new method to instead the traditional synchronous signal generator to get synchronous pulse.