GPS接收机空时二维抗干扰技术研究  

Study on Interference Suppression Using Space-time Adaptive Processing in GPS Receiver

作　　者：司东晓[1,2] 蔚保国[1,2] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]河北省卫星导航技术与装备工程技术研究中心,河北石家庄050081

出　　处：《无线电工程》2010年第3期33-35,共3页Radio Engineering

摘　　要：随着干扰技术的发展,GPS抗干扰性能差的缺点日益突出,对于能有效用于工程应用的抗干扰方法的研究显得尤为重要。空时二维抗干扰方法是GPS接收机抗干扰技术上的重大突破。在已给空时二维自适应滤波的模型及原理的基础上,通过对自适应约束准则的分析及选择,进而对不同情况下的空时自适应滤波权值的频率-角度响应进行了数字仿真和分析,得出了空时自适应滤波抗干扰的一些有益结论及合理解释。Along with the development of jamming technology, it is obviously that GPS shows a poor performance on interference suppression, and the study of an anti - jamming technique which can be efficiently used in engineering application becomes more important. space - time adaptive processing （STAP） technique is a great innovation on anti - jamming for GPS receivers. The model and theory of space- time adaptive processing are given, and through an analysis and selection of adaptive constrained rules, the frequency - angle responses of STAP power in different circumstances are simulated and some conclusions are educed.

关 键 词：GPS 空时抗干扰 线性约束最小方差(LCMV)准则 频率-角度响应(FAR) 

分 类 号：TN911.72[电子电信—通信与信息系统]