幅相校准在机载有源相控阵雷达中的应用  

Application of Amplitude and Phase Calibration in Airborne Active Array Radar

作　　者：陈翱[1] 

机构地区：[1]中国飞行试验研究院航电所,西安710089

出　　处：《现代雷达》2012年第5期17-19,共3页Modern Radar

摘　　要：对于机载有源相控阵雷达,天线低副瓣是最基本也是最重要的指标要求之一。有效、实时的幅度和相位校准是保证天线低副瓣指标的主要保证措施。文中详细描述了在有源相控阵天线系统中存在的幅相误差原理,给出了对幅度和相位进行实时校准的算法,同时也给出了校准剩余误差的验证方法,并通过软件流程框图给出了实时校准的流程,最后,通过在真实雷达中的实验结果验证了该方法的可行性和正确性。Low sidelobe of antenna is one of the most basic and important requirements for the airborne active phased array radar. The real-time and effective calibration of amplitude and phase is the main measure to ensure the requirement of low sidelobe anten- na. The theory of amplitude and phase error which exits in the active phased array antenna system is described detailedly in this paper. The real-time calibration algorithm of amplitude and phase and the verification method of remainder error are proposed in this article, and the flow of the real-time calibration is illustrated by the software flow chart. Finally, the feasibility and correctness o（ the proposed methods are approved by the experiment resuhs for the real radars.

关 键 词：机载雷达 校准 幅度 相位 副瓣 

分 类 号：TN958.92[电子电信—信号与信息处理]