全极化辅助天线对消极化干扰方法分析  

Cancellation Method Analysis of Full Polarized Auxiliary Antenna to Polarized Interference

作　　者：杨忠[1] 白渭雄[1] 付孝龙[1] 

机构地区：[1]空军工程大学防空反导学院,陕西西安710051

出　　处：《现代防御技术》2016年第5期131-136,共6页Modern Defence Technology

摘　　要：针对雷达探测信号多为线极化而干扰信号一般为圆极化的特点,提出通过全极化辅助天线的主极化和交叉极化接收通道,将干扰信号从回波信号中分离,从而对主天线接收到的干扰信号进行对消的抗干扰方法。这一方法不受干扰信号极化方式的影响,除与雷达探测信号同极化的信号外,可对抗任何形式的极化干扰信号。分析了对固定极化干扰信号的对消效果,包括转发式干扰和压制式干扰,证明了方法的可行性。Aimed at the feature of linear polarization of radar detection signals and circular polarization of jamming signals,a novel method of cancellation is presented. It separates the jamming and offset the jamming signals in main antenna by detecting signals through auxiliary antenna＇s co polarization and cross polarization components,which considers the fact that the jamming is circular polarized for the purpose of adaptability but the main antenna is linear main antenna. The effect will not be influenced by polarizations of the jamming signal. It can antagonize all polarizations of the jamming signal except one which is the same to the detect signal. The cancellation effect to fixed polarization jamming is analyzed,including transmittable jamming and barrage jamming. Computer aided simulation proves the effect of the method.

关 键 词：全极化天线 极化干扰 极化对消 交叉极化 压制干扰 欺骗干扰 

分 类 号：TN957[电子电信—信号与信息处理] TN973.3[电子电信—信息与通信工程]