相控阵测控技术(一):相控阵角跟踪概论  

Phased Array TT&C Technology—Part1: Introduction to Phased Array Angular Tracking

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8期1125-1132,共8页Telecommunication Engineering

摘　　要：相控阵同时多波束对多目标的高精度连续闭环角跟踪,是相控阵技术中的一个新的重要领域。针对此,提出用递归累加进行相位控制并构成一个积分环节,以此为基础构建成基本的一阶角跟踪环路,在环路中可再增加积分环节的个数构建成高阶的自动控制系统,从而实现高精度的连续角跟踪。给出了系统框图,推导出了常用的二阶环的闭环传递函数表达式,它与锁相环的闭环传递函数类似,可以应用锁相环技术的很多有关成果。还介绍了投影面转动法、空窗滑动法等相控阵角跟踪方法,尽管它们的跟踪方案不同但都具有相同的闭环传递函数模型。Using multiple beams simultaneously for highly precise continuous angle tracking of multiple targets is a new and important research area for phased array.In view of this,a method is proposed that uses recursive accumulation to control phase and create an integral part,based on which a basic first-order angle tracking loop is constructed.In the loop,the number of integral parts can be increased to constitute a high-order automatic adjustment system to achieve high precise continuous angle tracking.The block diagram of the system is given,and the commonly used expression of the closed-loop transfer function of the second order loop is deduced.The results show that the closed-loop transfer function of the second order loop is similar to that of the phase-locked loop,and many related achievements of the phase-locked loop technology can be applied.In addition,the angle tracking methods such as projection plane rotation method and space-domain window sliding method are also introduced.Although their tracking schemes are different,they both have the same closed-loop transfer function model.

关 键 词：相控阵测控 连续角跟踪 递归累加环 闭环传递函数 投影面转动法 空窗滑动法 

分 类 号：TN821.8[电子电信—信息与通信工程]