单通道相关干涉仪测向系统的快速实现  

Fast Implementation of Correlative Interferometry for Direction-Finding with One Receiving Channel

作　　者：苟晓鸣 孙中森[1] 唐怀玉 单中尧 李永庆 

机构地区：[1]中国电波传播研究所,山东青岛 [2]西安电子科技大学,陕西西安

出　　处：《无线通信》2018年第1期37-44,共8页Hans Journal of Wireless Communications

基　　金：青岛科技专项课题(青科创14-6-1-8-ZDZX);国家863计划项目(2015AA7124068A);国家自然科学基金(6133190102)。

摘　　要：无线电测向技术在无线电管理等领域的应用广泛,其中最为常用的技术方案为相关干涉仪测向技术,该技术对各种硬件设备误差具有较高的容忍度,测向精度也很高。针对单通道相关干涉仪测向系统,本文提出了一种实现方案,与经典方案需要四次移相操作来提取相位差相比,该方案仅需三次移相操作,相应的测量时间也节省了约四分之一。计算机仿真验证了本文方法与经典方案在测向结果上的一致性,以及在耗时方面的提升。The family of radio direction-finding techniques has been widely adopted in fields like radio management, and the correlative interferometry has been the most popular one, due to its high tolerance to various hardware imperfections and its high accuracy. This paper presents a scheme for direction finding with correlative interferometers using one receiving channel, which retrieves the phase difference within three phase shifts, compared with four phase shifts of the original scheme. The resulting measurement time will be shortened by a quarter. Computer simulations have demonstrated the consistency and efficacy of the proposed scheme over the original scheme.

关 键 词：测向 相关干涉仪 单通道 移相器 

分 类 号：TN9[电子电信—信息与通信工程]