基于轮采时间矩阵修正的单通道阵列系统设计与应用  

Design and Application of Single-Channel Array System Based on Rotation Time Matrix Correction

作　　者：陈云飞[1] 杨光[1] 刘航[2] 周彬[1] 李建军[1] CHEN Yunfei;YANG Guang;LIU Hang;ZHOU Bin;Li Jianjun(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China;DFH Satellite Co.,Ltd.,Beijing 100094,China)

机构地区：[1]中国电子科技集团公司第二十九研究所,成都610036 [2]航天东方红卫星有限公司,北京100094

出　　处：《电子信息对抗技术》2024年第6期92-98,共7页Electronic Information Warfare Technology

摘　　要：针对常规多通道阵列工程实现所面临的多通道间幅相校准、同步采样等实际需求,以及由此产生的设备体积、重量、功耗、成本等急剧增大的难题,提出一种基于轮采时间矩阵修正的单通道阵列系统设计与应用方法。首先,射频轮采切换开关对各个阵元接收信号进行轮流采样,并通过单通道射频接收机完成射频到中频的信号转换。然后,单通道数字接收机接收单路中频信号进行数字信号处理,其关键步骤采用所提方法构建轮采时间矩阵对单通道阵列数据进行修正,确保修正后各阵元间数据相位关系满足阵列信号处理条件。最后,将单通道阵列数据应用于单通道阵列数字波束形成(Digital Beam Forming,DBF)和单通道超分辨测向等无源探测领域,使所提单通道阵列系统设计方法的工程应用成为可能,计算机仿真验证了该方法的有效性。A single channel array system design and application method based on rotation sampling time matrix correction is proposed to address the practical requirements of multi-channel amplitude and phase calibration,synchronous sampling,and the rapid increase in equipment volume,weight,power consumption,and cost faced by conventional multi-channel array engineering implementation.Firstly,the RF round sampling switch takes turns sampling the signals received by each array element,and converts the RF to IF signals through a single channel RF receiver.Then,the single channel digital receiver receives a single intermediate frequency signal for digital signal processing.The proposed method is used by the key step to construct a round sampling time matrix to correct the single channel array data,ensuring that the phase relationship between the corrected array elements meets the array signal processing conditions.Finally,the single channel array data is applied to passive detection fields such as digital beam forming(DBF)and single channel super-resolution direction finding,making the engineering application of the design method for the single channel array system possible.The effectiveness of this method is verified by computer simulation.

关 键 词：多通道阵列 轮采时间矩阵 单通道阵列 无源探测 数字波束合成 超分辨测向 

分 类 号：TN957.2[电子电信—信号与信息处理]