一种基于波束幅度预分选的实时比幅测向方法  

A real-time amplitude comparison direction finding method based on beam amplitude presorting

作　　者：李忠玉 刘秋飞 何冠良 卜伟雄 廖卫东 马玉卿 LI Zhongyu;LIU Qiufei;HE Guanliang;BU Weixiong;LIAO Weidong;MA Yuqing(The Eighth Research Academy of CSSC,Nanjing 211153)

机构地区：[1]中国船舶集团有限公司第八研究院,南京211153

出　　处：《雷达与对抗》2024年第4期34-39,共6页Radar & ECM

摘　　要：针对相控阵体制装备中单脉冲快速测向需求,设计一种基于波束幅度预分选的实时比幅测向方法。依托FPGA硬件平台,首先对波束幅度模值进行估计预分选,进而对波束幅度差进行量化寻址,最终输出信号测向方位。该方法在提升数据处理速率的同时可大大减少FPGA硬件逻辑资源消耗量,目标信号实时测向方位输出小于20μs,测向精度均方差小于0.3°。In response to the demand for monopulse rapid direction finding in the phased array system equipment,a real-time amplitude comparison direction finding method is designed based on beam amplitude presorting.Based on the FPGA hardware platform,the beam amplitude modulus is firstly estimated and presorted,and then the beam amplitude difference is quantified and addressed.Finally,the direction finding azimuth of the target signal is output.This method can greatly reduce the consumption of FPGA hardware logic resources while improving the data processing rate.The real-time direction finding azimuth output of the target signal is less than 20μs,and the mean square error of the direction finding accuracy is less than 0.3°.

关 键 词：实时测向 预分选 波束幅度 FPGA 信号检测 

分 类 号：TN79[电子电信—电路与系统]