一种基于比幅测向对无频率信息的毫米波信号提高测向精度的方法  

A method of improving direction finding accuracy for millimeter wave signals without frequency information base on amplitude comparision direction finding

作　　者：闫思瑞 YAN Sirui(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China)

机构地区：[1]中国电子科技集团第二十九研究所,四川成都610036

出　　处：《长江信息通信》2023年第3期21-24,共4页Changjiang Information & Communications

摘　　要：比幅测向是一种在雷达告警系统中广泛采用的测向方法,通过比较多个天线输出的幅度信息来测量辐射源的方位。对于没有频率信息的毫米波信号,无法利用频率信息进行校正。文章介绍了比幅测向系统的模型及原理,推导了影响测向精度的因素,提出了一种针对无频率信息的毫米波信号的提高测向精度的方法。通过实际测试表明,该方法显著提高了系统的测向精度。Amplitude comparison DF is a direction finding method widely used in radar warning systems.lt measures the direction of radiation sources by comparing the amplitude information output by multiple antennas.For millimeter wave signals without frequency mfbrmation,frequency information cannot be used for correction.This paper introduces the model and principle of amplitude comparison DF system,derives the factors affecting DF accuracy,and proposes a method to improve DF accuracy for millimeter wave signals without frequency information.The actual test shows that the method significantly improves the DF accuracy of the system.

关 键 词：无频率信息 毫米波 测向精度 比幅测向 

分 类 号：TN97[电子电信—信号与信息处理]