航空通信频率干扰因素及抑制技术

Analysis of Frequency Interference Factors and Suppression Technology in Aviation Communication

针对航空GPS通信导航频率易受干扰,传统抗干扰设计过于复杂、质量过大、安装难度大的问题,提出了一种小型化的五元件(4+1)天线阵列设计方案。首先,设计其工作在L1/E1频带(具有阵列能力)以及L5/E5频带(作为单个天线),其能够适应大部分上机的空间尺寸,适合于在未来的空中平台中轻松集成。其次,其具备多频带操作以及满足双频多星座(DFMC)系统的能力,验证结果显示,设计的天线阵列具备很强的鲁棒性和抗干扰能力。最后,本文给出了一些导航频率抗干扰的保障措施。

In view of the problems that the navigation frequency of aviation GPS communication is vulnerable to interference,the traditional anti-jamming design is too complex,too heavy,and difficult to install,a miniaturized five-element(4 +1)antenna array design scheme is proposed,Firstly,it is designed to work in the L1/E1 band(with array capability) and L5/E5band(as a single antenna),it can adapt to most of the space size of the aircraft and is suitable for easy integration in the future air platform.Secondly,it has the ability of multi-band operation and meets the requirements of dual-band multi-satellite(DFMC) system.The verification results show that the designed antenna array has strong robustness and anti-interference capability.Finally,some guarantee measures for anti-interference of navigation frequency are given.