相控阵测控技术(五):相控阵测控系统的附加误差分析法  

Phased Array TT&C Technology-Part5:Additional Error Analysis Method for Phased Array TT&C System

作　　者：刘嘉兴[1] LIU Jiaxing(Southwest China Institute of Electronic Technology,Chengdu 610036,China)

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2023年第12期1925-1928,共4页Telecommunication Engineering

摘　　要：在相控阵测控系统中,由于角度误差对测速、测距误差耦合效应等的影响,使测速/测距误差加大。为分析这些特殊误差,提出了附加误差分析法和基准阵元法,用相控阵中的基准阵元等效机扫天线,以此作为比较基准,从而分析得到对机扫天线测控系统相控阵化后增加的各项附加误差,总的误差等于该附加误差与原机扫天线测控系统误差之和。该方法继承了机扫天线测控系统测速、测距精度分析的成熟理论,聚焦到了相控阵化后的特殊问题,物理概念较为清晰,具有较大的工程实用意义。In a phased array TT&C system,due to the coupling effect of angle error on range rate measurement and ranging errors,the errors of range rate measurement and ranging are increased.To analyze these special errors,the author proposes Additional Error Analysis Method and Reference Array Element Method.The reference elements in phased array,equivalent to mechanical scanning antennas,are used as comparison benchmark,thus obtaining the additional error increased by the phased array of previous machine scanning antenna TT&C systems through analysis.The total error is the sum of this additional error and the error of the original machine scanning antenna TT&C system.The methods inherit the mature theory of range rate and range measurement error analysis of previous machine scanning antenna TT&C systems,focusing on the special problems after phased array.The physical concept of the methods is relatively clear,and they have great engineering practical significance.

关 键 词：相控阵测控系统 测速/测距误差 合成载波相移 附加误差法 基准阵元法 

分 类 号：TN821.8[电子电信—信息与通信工程]