一种提取视频电磁泄漏信息同步特征的方法

荀京京, 王厚军, 向长波, 宋建中

荀京京, 王厚军, 向长波, 宋建中. 一种提取视频电磁泄漏信息同步特征的方法[J]. 电子科技大学学报, 2007, 36(3): 579-582.
引用本文: 荀京京, 王厚军, 向长波, 宋建中. 一种提取视频电磁泄漏信息同步特征的方法[J]. 电子科技大学学报, 2007, 36(3): 579-582.
XUN Jing-jing, WANG Hou-jun, XIANG Chang-bo, SONG Jian-zhong. A Method for Extracting the Synchro Characters in the Video Information Leaked by a Computer System[J]. Journal of University of Electronic Science and Technology of China, 2007, 36(3): 579-582.
Citation: XUN Jing-jing, WANG Hou-jun, XIANG Chang-bo, SONG Jian-zhong. A Method for Extracting the Synchro Characters in the Video Information Leaked by a Computer System[J]. Journal of University of Electronic Science and Technology of China, 2007, 36(3): 579-582.

一种提取视频电磁泄漏信息同步特征的方法

详细信息
    作者简介:

    荀京京(1955-),男,在职博士生,高级工程师,主要从事科学仪器与计量、信息安全等方面的研究.

  • 中图分类号: TP274.23

A Method for Extracting the Synchro Characters in the Video Information Leaked by a Computer System

  • 摘要: 检测/截获计算机电磁泄漏的视频信息,其关键技术是图像信息的恢复还原。该文用类Harr小波提取不同程度倾斜的视频图像的纹理特征,测量纹理的倾斜角度,用于自动控制行同步参数的调整,直到行同步的精度满足要求,实现截获的计算机视频泄漏信息(图像)的稳定恢复再现。
    Abstract: Some common characters in the video information leaked by a computers system are the texture characteristics which are composed of moving black areas of a reconstructed image from the leaked video information. The texture characteristics are quite different with the varying of synchronal frequency. The moving speed of the texture increases when the synchronal error becomes larger. And the moving direction is decided by the sign of the error. According to these features, a similar Harr Wavelet method is used to extract the synchronal characters in the video information leaked by a computer system. Based on these synchronal characters, the angles tilted by the synchronal error are used to adjust the frequency of the synchronal pulses until the synchronal accuracy is enough for steady display.
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出版历程
  • 收稿日期:  2006-10-08
  • 刊出日期:  2007-06-14

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