摘要
计算机电磁信息泄漏是信息安全的一个隐患。文章设计了无线接收计算机设备电磁辐射信号的系统,针对泄漏信息中包含复杂干扰信号的问题,利用小波分析对接收到的显示器电磁泄漏信息进行滤波和除噪处理。实验结果证明:小波能够很好的改善还原效果。
A new portable wireless receive system for the elec-tromagnetic emanation from compute r is designed,in which most job was completed through software.Since noise and other signals are also received,wavelet analysis is firstly introduced to dispose these electromagnetic radiation signals.Results prove that wavelet can greatly improve the reco very effects.
出处
《微电子学与计算机》
CSCD
北大核心
2002年第8期4-6,共3页
Microelectronics & Computer
