北斗导航系统上行注入链路窄带干扰抑制分析  

Analysis of BD Navigation System Uplink Rejection Anti-NBI

作　　者：郭淑霞[1] 刘孟江[1] 董中要[1] 高颖[1] 

机构地区：[1]西北工业大学,西安710065

出　　处：《微处理机》2013年第4期37-40,48,共5页Microprocessors

基　　金：武器装备部预研基金(20122HK03010);2010;2012年西北工业大学科技创新基金资助

摘　　要：现北斗卫星导航系统已经逐步投入使用,强健的抗干扰能力是其正常运行的保证。针对北斗卫星导航系统上行注入链路存在的窄带干扰,进行了干扰建模,并分析了干扰机理,分别使用自适应滤波的时域处理和变换域处理算法进行了干扰抑制,并进行了仿真验证,通过仿真结果对两种干扰抑制算法的性能进行了比较。结果表明,在北斗上行信道中,时域处理算法的性能优于变换域处理算法,研究成果将有助于北斗卫星导航系统上行注入链路干扰抑制的工程实践。As Beidou satellite navigation system has been gradually put into civil and military use,the perfect capability of anti-jamming is a guarantee for normal operation.Aim at the narrow band interference（NBI）in Beidou uplink,the paper preforms the signal model and analyzes the interference mechanism.The jamming is inhibited respectively by adaptive filtering time domain processing and transform domain processing algorithm and the simulation is proved.And the simulation result is used to compare the performance of the two algorithms.The result shows that the Time domain processing is better than Transform domain processing.The research result will be helpful to the engineering practice of BD uplink rejection anti-NBI.

关 键 词：北斗 窄带干扰 时域处理 变换域处理 

分 类 号：TN91[电子电信—通信与信息系统]