电子战接收机测向测频精度提高方法  

A Method for Improvement of Direction Finding and Frequency Finding Accuracy of Electronic Warfare Receiver

作　　者：李东海[1] LI Donghai(No.91404 Troops of PLA,Qinhuangdao 066001)

机构地区：[1]91404部队

出　　处：《舰船电子工程》2019年第11期93-96,103,共5页Ship Electronic Engineering

摘　　要：对电子战接收机而言,方位信息(AOA)及频率信息(RF)是最重要的两个参数。文章提出基于二次校正技术的比幅测向处理方法,以及应用对称电阻环消除直流电位引起的相位偏置,据此设计了采用新技术的比幅测向瞬时测频接收机。这种接收机不仅体积很小而且有很高的测向测频精度。For EW receivers,azimuth information and frequency information are the two most important parameters.In this pa per,a method of amplitude comparison direction finding based on secondary correction technology is proposed,and a symmetrical re sistance ring is used to eliminate the phase offset caused by DC potential.Based on this,a new IFM receiver for amplitude compari son direction finding is designed.This receiver is not only small in size,but also has high accuracy of frequency and direction finding.

关 键 词：比幅测向 瞬时测频 二次校正 对称电阻 

分 类 号：TN974[电子电信—信号与信息处理]