| 计算机电磁辐射信息再现分析 |
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| 引用本文： | 杨文翰,吕英华.计算机电磁辐射信息再现分析[J].北京邮电大学学报,2011,34(1):26-29. |
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| 作者姓名： | 杨文翰 吕英华 |
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| 作者单位： | 北京邮电大学,电子工程学院,北京,100876;北京邮电大学,电子工程学院,北京,100876 |
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| 基金项目： | 国家自然科学基金项目(61072136)； 高等学校博士学科点专项科研基金项目(200700130046) |
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| 摘 要： | 为了将成熟的通信技术应用于计算机电磁辐射信息安全(TEMPEST)研究,对比分析了通信系统模型与电磁辐射信息传播的通用模型的异同;根据通信系统的思想分析了计算机视频信息的编码与调制方式;给出了计算机视频信息的译码与还原方法,并实现了视频信息的还原;建立了视频信息辐射泄漏、接收、解调和译码整个过程的等效通信系统模型.结果表明,通信技术能有效应用于信息再现.
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| 关 键 词： | 电磁信息泄漏 信息再现 通信系统 |
| 收稿时间： | 2010-03-18 |
| 修稿时间： | 2010-10-11 |
Analysis of Information Recovery from EM Leakage of Computers |
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| YANG Wen-han,L Ying-hua.Analysis of Information Recovery from EM Leakage of Computers[J].Journal of Beijing University of Posts and Telecommunications,2011,34(1):26-29. |
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| Authors: | YANG Wen-han L Ying-hua |
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| Affiliation: | YANG Wen-han,Lü Ying-hua(School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China) |
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| Abstract: | Based on the proven communications technology, the transmitted electromagnetic pulse/energy standards and testing (TEMPEST) is studied. The propagation model of computer information leakage is compared with conventional communication system model. Then coding and modulation of computer video information is analyzed, and the recovery method is given. Finally, an equivalent communication system model of computer video information leakage, reception, demodulation and decoding is established, indicating that the communication technology is effective in transmitted electromagnetic pulse/energy standards and testing study. |
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| Keywords: | electromagnetic information leakage information recovery communication system |
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