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Efficient and anti-interference method of synchronising information extraction for cideo leaking signal

机译：Cideo泄漏信号同步信息提取的高效抗干扰方法

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摘要

Electromagnetic radiation signal from computer display can be seen as a computer security risk if the radiation signal is intercepted and reconstructed. Electromagnetic radiation signal from computer display can also be called video leaking signal. Synchronising information extraction is the key problem of computer video leaking signal interception and reconstruction. To solve such problem, a novel synchronising information extraction algorithm based on spectral centroid has been developed. This study not only introduced spectral centroid into video leaking signal processing but also defined the concept of segmented spectral centroid. In addition, the uniformity degree of spectral centroid spacing distribution was defined to describe the harmonic characteristics of video leaking signal spectrum. The proposed algorithm can extract the electromagnetic radiation signal's synchronising information automatically and efficiently even with interference signal. Thus, the interception and reconstruction of electromagnetic radiation can be realised more effectively and the anti-interference performance can be improved.
机译：如果拦截并重建了辐射信号，则来自计算机显示器的电磁辐射信号可被视为计算机安全风险。来自计算机显示器的电磁辐射信号也可以称为视频泄漏信号。同步信息提取是计算机视频泄漏信号的拦截和重建的关键问题。为了解决这一问题，开发了一种基于谱质心的新型同步信息提取算法。该研究不仅将频谱质心引入视频泄漏信号处理中，而且定义了分段频谱质心的概念。此外，定义了频谱质心间隔分布的均匀度，以描述视频泄漏信号频谱的谐波特性。所提出的算法即使有干扰信号也能自动，高效地提取电磁辐射信号的同步信息。因此，可以更有效地实现电磁辐射的拦截和重构，并且可以提高抗干扰性能。

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