主动自加噪传输技术及其反通信侦察效能分析

Transmission Technique by Active Self-added Noise and Its Efficiency Analysis for Anti Communication Reconnaissance

虽然各种信息安全措施在通信系统的传输层、网络层和链路层广泛使用,使其安全等级得到了较大提升,但随着近年来通信侦察技术的不断进步与发展,通信传输物理层安全问题却日益突出。针对这一情况,提出了基于通信发射方自己主动添加噪声进行信号传输的方法,以此来有效阻止非合作的第三方对物理层信息的直接获取。根据不同的防护要求,设计了空间辐射自加噪与射频合路自加噪这2种主动自加噪传输模式,并分析了其不同的应用条件与反通信侦察的效能。最后通过仿真验证了上述方法的合理性与有效性,这对于提高通信传输物理层安全等级,推进通信电子防御工程建设具有重要参考意义。

Various safety measurements are widely utilized in transmission layer,network layer and data-link layer of the communi- cation systems and their safety grades have been enhanced greatly.But the safety of physical layer becomes a big problem now.In order to resolve this,a new transmission method based on active self-added noise at transmitter is put forward and the third party with non-co- operative relationship can be prevented from acquiring the information in signal of physical layer. According to the different protection requirements, two modes have been designed, including space radiation self-added noise mode and radio frequency combiner self-added noise mode.Their different utilization conditions and efficiency for anti communication reconnaissance are analyzed.The rationality and validity have been demonstrated by simulations in the end. It is an important reference for communication physical layer safety and electronic protection application.