分布式干扰波束形成及其性能影响因素分析  

Analysis of Distributed Interference Beam Forming and The Factors Influencing Its Performance

作　　者：于周吉 YU Zhou-ji(Navy Equipment Department,Beijing 100036,China)

机构地区：[1]海军装备部,北京100036

出　　处：《舰船电子对抗》2021年第2期36-39,44,共5页Shipboard Electronic Countermeasure

摘　　要：对分布式干扰波束形成的性能及其影响因素进行了系统性分析,推导了分布式干扰波束形成的归一化平均功率方向图,对相位误差和位置误差对归一化平均方向图的影响进行了理论分析。仿真结果表明,干扰节点越多,归一化平均功率方向图的主副比越大;干扰节点分布区域越大,波束宽度越窄;相位误差的存在会导致分布式干扰波束形成的性能下降,相位误差越大,归一化平均功率方向图的峰值越低。This paper systematically analyzes the performance of distributed interference beam forming and its influencing factors,derives the normalized average power pattern of distributed interference beam forming,and performs the theoretical analysis to the influence of phase error and position error on the normalized average pattern.The simulation results show that:the more interference nodes,the larger the primary and secondary ratio of the normalized average power pattern;the larger the interference node distribution area,the narrower the beam width;the presence of phase errors will reduce the performance of distributed interference beam forming,and the larger the phase error,the lower the peak value of the normalized average power pattern.

关 键 词：幅相加权 分布式干扰波束形成 归一化平均功率方向图 

分 类 号：TN972[电子电信—信号与信息处理]