视频显示器图像的电磁泄漏重建
Reconstruction the image on video display unit by electromagnetic leakage
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摘要: 计算机数据的电磁辐射泄漏近来一直受到人们的关注。该文提出了一套利用其辐射信号获取显示信息并重建之的系统。该系统通过天线接收电磁辐射，经放大，A/D转换后，输入计算机，然后对该数据进行处理，重建图像。试验表明，该系统完全可行，并达到满意的效果。Abstract: Electromagnetic leakage of video display unit becomes the focus of wide interest recently. An image-reconstruction system is presented here using electromagnetic leakage from video display unit. In this system a loop antenna is employed to receive the radiation. After being magnified, A/D transferred, the received data are processed by computer to reconstruct the image. The experiment shows the feasibility and good performance of this system.
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