一种针对时变干扰信号的空时抗干扰算法研究  

Research of space-time anti-jamming algorithms to time-varying interference signal

作　　者：刘东辉 乔瑞萍[1] Liu Donghui;Qiao Ruiping(School of Electronics and Information Engineering,Xi＇an Jiaotong University,Xi＇an 710049,Shanxi,China)

机构地区：[1]西安交通大学电子与信息工程学院,陕西西安710049

出　　处：《航天电子对抗》2018年第5期55-59,共5页Aerospace Electronic Warfare

基　　金：陕西省科学技术研究发展计划项目(工业科技攻关)(No:2016GY-133);西安市科技计划项目:高校院所技术转移推进项目(No:CXY1514(7))

摘　　要：根据车载导航系统的安全性要求,对于导航系统的带内干扰信号,研究了基于空时滤波架构的高斯赛德尔迭代算法、多级维纳滤波算法。针对干扰信号的时变性特点,提出了高斯赛德尔迭代算法和多级维纳滤波算法相结合的方法,并进行了Matlab和DSP硬件仿真。根据仿真结果,结合算法可以有效地抑制干噪比较大的干扰信号,同时保证了实时性的要求。According to the safety requirements of vehicle navigation system and aimed at the in-band jamming signal of navigation system,the Gauss-Seidel iterative algorithm and the multistage wiener filter algorithm are studied based on space-time filtering architecture.For the characteristics of the time-varying jamming signal,a combination of Gauss-Seidel iteration algorithm and multistage wiener filtering algorithm is proposed,and the combining algorithm is emulated by Matlab and DSP.According to the result of simulation,the combining algorithm can effectively suppress the interference signal with large ratio of jamming to noise and ensure the real-time requirements.

关 键 词：导航系统 抗干扰 高斯赛德尔迭代 多级维纳滤波 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]