自适应调零天线动态性能影响因素研究  

Research on Factors Affecting Dynamic Performance of Adaptive Zeroing Antenna

作　　者：安国臣[1] 刘若凡 王晓君[1] An Guochen;Liu Ruofan;Wang Xiaojun(School of Information Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China)

机构地区：[1]河北科技大学信息科学与工程学院,石家庄050018

出　　处：《信息化研究》2024年第3期8-15,共8页INFORMATIZATION RESEARCH

基　　金：河北省省级科技计划项目,新一代电子信息技术创新专项(No.21310402D)。

摘　　要：本文针对卫星导航接收机的功率倒置(PI)算法在动态环境下受到最优权值处理速度的制约,导致动态抗干扰性能下降这一个问题,通过建立动态仿真环境,以七阵元均匀圆阵作为天线布阵的仿真模型,研究了不同权值更新速率对动态抗干扰性能的影响,证明了权值更新速率的提升对动态抗干扰性能也有相应的提高。并且分析了在不同快拍数以及不同时域抽头数对动态抗干扰性能的影响,证明了可以通过适当选择快拍数和时域抽头数来提高权值更新速率。本研究为建立更加完善的工程实现方案提供了理论依据,对存在类似需求的空时自适应调零天线抗干扰系统具有一定的参考价值。Aiming at the problem that the power inversion(PI)algorithm of satellite navigation receiver is restricted by the optimal weight processing speed under dynamic environment,which leads to the degradation of dynamic anti-jamming performance,the influence of different weight update rates on dynamic anti-jamming performance is studied by establishing a dynamic simulation environment and using seven-array uniform circular array as the simulation model of antenna array.It is proved that the dynamic anti-interference performance is also improved with the increase of weight update rate.The influence of different fast beats and time domain taps on dynamic anti-jamming performance is analyzed,and it is proved that the weight updating rate can be improved by selecting the fast beats and time domain taps appropriately.This study provides a theoretical basis for the establishment of a more perfect engineering implementation scheme,and has a certain reference value for the space-time adaptive zeroing antenna anti-jamming system with similar needs.

关 键 词：功率倒置算法 最优权值 权值更新速率 快拍数 时域抽头数 动态抗干扰性能 

分 类 号：TN911.72[电子电信—通信与信息系统]