有源相控阵雷达多通道幅相校准研究  

A Study on Errors of Multi-channel Amplititute and Phase Calibration for Active Phased Array Antenna

作　　者：左平[1] 

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2009年第10期14-16,共3页Modern Radar

摘　　要：为实现有源相控阵天线的超低副瓣性能,对通道校准的剩余误差控制,以及通道间的幅相一致性提出了更高的要求。文中介绍了收/发校准的流程,阐述了基于快速傅里叶变换的天线阵面校准原理,对影响天线性能的误差进行了分析,提出了为提高校准精度采用的校准方法。仿真结果表明,在误差控制范围内,雷达的收发天线性能满足设计要求。In order to guarantee ultralow sidelobe level of solide-state active phased array antenna, there is very strict requirement on the control of channel calibration residual errors and on amplititute-phase consistency of multiple channels. Firstly, this paper introduces the process of receiving/transmitting channel calibration, describes the theory of antenna array calibration based on FFT, analyzes the errors of multi-channel receive/transmission calibration and then presents a good calibration method that would improve the calibration accuracy. Simulation results are presented, which show the validity of the theoretical analysis and the method proposed in this paper.

关 键 词：固态有源相控阵 幅相误差 峰值副瓣电平 剩余误差 

分 类 号：TN958.92[电子电信—信号与信息处理]