无线安全通信系统设计方法研究

Design of Wireless Security Communication System

为满足无线信道保密通信的需求,将信号强度和多普勒频移作为无线信道的特征进行采集,并设计了一套基于VPX架构的无线通信系统。系统分别对无线信道的两种特征进行采集,然后利用特征值对无线通信链路的通信过程进行加密。经测试得到生成密钥的匹配性指标,对比实验数据明确同一条件下采集不同特征值保密通信的优劣,从而为工程应用中无线链路安全通信提供一种参考手段。

For the wireless channel secure communication needs, the signal intensity and Doppler frequency is collected as the characteristic of wireless channel, and a wireless communication system based on VPX architecture is designed. This system collects respectively the two characteristics of wireless channel, and with the characteristic value, encrypts the communication process of wireless communication link. Matching index of the generated key is acquired via experiment, and comparison of the experimental data indicates the advantage and disadvantage of secure communication with the collection of different characteristic values under the same condition, thus to provide a reference for wireless link secure communication in engineering application.