EMR对混沌同步保密通信系统干扰的初步研究
Preliminary on the interference of EMR to chaotic synchronous secure communication system
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摘要: 使用GTEM Cell实验系统，研究了连续波电磁辐射对基于混沌同步理论的保密通信系统的电磁干扰。混沌保密通信系统采用由典型的Chua氏混沌电路构造混沌同步系统，采用掩盖法对模拟信号进行加密传输。实验发现：在100MHz~150MHz的频率范围内，超过一定功率密度的电磁辐射会导致系统的混沌加密功能失效，此后即使停止电磁辐射，系统仍无法自行恢复到混沌加密状态。Abstract: A Giga-Hertz Transverse Electromagnetic Cell (GTEM Cell) was used to study the interference of continuous electromagnetic waves on a chaotic synchronous secure communication system, which was based on the typical Chua's chaotic circuits. During the experiments, it was found that within the frequency range from 100MHz-150MHz there were some thresholds of the electromagnetic radiant (EMR) power density to a certain chaotic secure communication system. If the EMR power density is great than the threshold in this frequency range, the chaotic encrypt function of the secure communication system will be ineffective. Moreover, the chaotic synchronous secure communication system cannot recover from the ineffective state to chaotic synchronous state by itself even after the EMR is removed. This is a
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