被动雷达目标的极化方式识别  

Polarization Identification of Passive Radar Target

作　　者：陈涛[1] 刘勇[1] 王莹[1] 刘鲁涛[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,哈尔滨150001

出　　处：《弹箭与制导学报》2013年第2期109-112,116,共5页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：中央高校基本科研业务费专项资金(HEUCF120802);国家自然科学基金(61201410/F010301)资助

摘　　要：为了有效的对被动雷达目标进行识别,提出利用极化方式差异性进行被动雷达目标识别的方法。分析了不同极化方式雷达波的表征方式,提出了变极化接收识别方法,利用虚拟变极化接收技术分析其瞬时极化方向并根据其一二阶差分特性进行极化方式判断。根据不同极化方式雷达波的时域特性,提出基于最小幅度输出准则和基于幅度比和相位差联合判断的极化识别方法。仿真分析表明后两种方法的效果突出,可行性高。For effect passive radar target identification, a new method based on the difference of radar polarization was introduced. The rep-resentation of different polarization radar was analyzed, a variation of polarization identification method was proposed, which judge the po-larization by analyzing the instantaneous direction of polarization and its one and second-order differential characteristics. According to the time domain characteristics of different polarization radar signal received by orthogonally polarized antenna, identification programs based on the minimum amplitude output criteria and the amplitude and phase judgment were put forward. The simulation analysis verified the effec-tiveness of the last two methods.

关 键 词：极化识别 虚拟极化 最小幅度 正交天线 

分 类 号：TN971.1[电子电信—信号与信息处理]