拒止环境下的塔康欺骗干扰

Research on TACAN Deception Jamming Based on Denial Environment

为解决塔康欺骗信号在接收机处捕获率不高的问题,设计了通过施加带限白噪声构建拒止环境,掩护干扰信号进入机载接收机,提高欺骗信号相对捕获概率的新干扰模式。首先分析了塔康测距解算时噪声信号对解算结果的影响,研究了该干扰模式下所需欺骗干扰功率随干扰机与飞机距离的变化情况,进而分析了欺骗信号在施加带限白噪声协助下相对捕获概率随干信比的变化。最后通过仿真验证,证明所提出的欺骗干扰模式可以实现对真实测距应答信号的有效压制,使欺骗信号成功被机载接收机捕获。

To cope with the problem that the acquisition probability of jamming signals in the TACAN receiver is too low, a new iamming model based on the denial environment is proposed in this paper. Firstly,the influence of noise on the computed results is studied. Secondly, the deception jamming power changed along with distance between the airborne and the jammer is analyzed. Then, the relative acquisition probability of the deception signals changed along with the JSR （jam to signal ratio） is analyzed. Finally, the effectiveness of the jamming model is proved by simulation.