基于空间分集的多阵列天线智能切换方法  

Intelligent Switching Method of Multi-array Antenna Based on Spatial Diversity

作　　者：王晓飞 蒲放 叶菁 黄治江 WANG Xiaofei;PU Fang;YE Jing;HUANG Zhijiang(14th Branch Bureau of Jiuquan,Jiuquan 735018,China;Institute of Electronic Engineering,CAEP,Mianyang 621900,China)

机构地区：[1]甘肃酒泉十四支局,甘肃酒泉735018 [2]中国工程物理研究院电子工程研究所,四川绵阳621900

出　　处：《无线电工程》2023年第10期2366-2374,共9页Radio Engineering

基　　金：国家重点研发计划(2019QY020004)。

摘　　要：随着数字信号处理技术的发展,基于数字波束形成(Digital Beamforming,DBF)技术的共形相控阵天线已成为全空域多目标测控的主要解决途径。随着测控站与目标的相对位置变化,共形相控阵中用于接收遥测信号的有效天线阵元会进行切换,切换过程中常常会因切换时延和遥测信号失锁造成数据丢帧现象,致使遥测接收数据不连续。针对全空域多目标系统中对测控目标的连续跟踪测量需求,提出了基于空间分集的数字相控阵天线智能切换策略和信号处理解决方案,给出了天线切换具体实现方法,并对天线切换进行了模拟测试和效果验证,可为数字相控阵全空域多目标跟踪测量提供借鉴思路。With the development of digital signal processing technology,Digital Beamforming(DBF)based conformal phased array antenna has become a main solution way for TT&C system with whole airspace and multiple targets scenario.The effective antenna elements used to receive telemetry signals in the conformal phased array will switch along with the relative position of the measurement and control station and the target changes.During the switching process,the data frame loss is often caused by switching delay and telemetry signal loss lock,resulting in the discontinuity of telemetry received data.Aiming at the continuous tracking and measurement requirements of the measurement and control targets in the whole-space multi-target system,an intelligent switching strategy and signal processing solution of digital phased array antenna based on spatial diversity are proposed,and the specific realization method of antenna switching is given。The simulation test and effect verification of antenna switching are carried out,which can provide reference for the digital phased array based whole-space and multi-target TT&C system.

关 键 词：信号处理 数字相控阵 数字波束形成 和差波束 天线切换策略 

分 类 号：TN911[电子电信—通信与信息系统]