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.
出处
《现代雷达》
CSCD
北大核心
2009年第10期14-16,共3页
Modern Radar
关键词
固态有源相控阵
幅相误差
峰值副瓣电平
剩余误差
solid-state active phased array
amplitude and phase errors
peak sidelobe level
residual errors
