摘要
对于宽带有源相控阵雷达,通道失配会影响阵列处理性能,可通过通道均衡技术进行补偿。现有研究大多以仿真模型为基础,鲜有实测数据为支撑,且均衡评价方法过于单一。构建了结合剩余失配特性、脉压及波束形成方向图的综合评价体系,可更加全面地评价均衡效果。此外,以某机载有源相控阵雷达为平台,工程实验了150 MHz宽带信号的频域均衡算法,并提出矩形窗加权均衡算法,仿真及实测数据表明该算法对均衡效果有所提升。
For wideband active phased array radar,channel mismatch could affect array processing performance,which can be compensated by channel equalization technology.Most of the existing studies are based on simulation models,supported by few measured data,and the equalization evaluation method is too single.In this paper,a comprehensive evaluation system combining residual mismatch characteristics,pulse compression and beam forming antenna pattern is constructed,which can evaluate the equalization effect more comprehensively.In addition,taking an airborne active phased array radar as a platform,the frequency domain equalization algorithm of 150 MHz wideband signal is tested in engineering,and the rectangular window weighted equalization algorithm is proposed.The simulation and measured data both show that the algorithm improves the equalization effect.
作者
张小龙
朱枫
夏德平
杨斌
Zhang Xiaolong;Zhu Feng;Xia Deping;Yang Bin(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China;State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China)
出处
《电子技术应用》
2022年第9期6-12,共7页
Application of Electronic Technique
关键词
有源相控阵
通道失配
通道均衡
加权均衡
active phased array
channel mismatch
channel equalization
weighted equalization
