通道幅相一致性对副瓣对消能力的限制分析  

Analysis of the restriction of channel amplitude-phase consistency on sidelobe cancellation capability

作　　者：耿昭谦 陈梅青[1] GENG Zhaoqian;CHEN Meiqing(Nanjing Changjiang Electronic Information Industry Group Co.,Ltd.,Nanjing 210038,China)

机构地区：[1]南京长江电子信息产业集团有限公司,南京210038

出　　处：《空天预警研究学报》2025年第2期109-113,共5页JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH

摘　　要：针对有源干扰环境下主辅通道幅相一致性对副瓣对消能力的影响,提出了一种基于主辅通道相位差的方差方法,用于定量分析通道幅相一致性对副瓣对消能力的限制;然后仿真分析给出了不同输入干噪比、不同幅度差以及不同相位方差下的最大对消能力;最后结合干扰试验,验证了利用该方法给出最大对消比的可行性.Aiming at the influence of amplitude-phase consistency of main-auxiliary channels on the cancellation ability of sidelobe in an active interference environment,this paper proposes a variance method based on the phase difference of main-auxiliary channels to quantitatively analyze the restriction of amplitude-phase consistency of channels on the cancellation ability of sidelobe,then makes simulation analysis to give the maximum cancellation ability under different input jamming to noise ratio,different amplitude difference and different phase variance,and finally combines with interference experiments to verify the feasibility of using this method to provide the maximum cancellation ratio.

关 键 词：主辅通道 副瓣对消 幅相一致性 相位方差 对消能力 

分 类 号：TN957.51[电子电信—信号与信息处理] TN974[电子电信—信息与通信工程]