测控天线快速搜索扫描策略改进研究  

Research on Improvement of Fast Search and Scanning Strategy for TT&C Antennas

作　　者：霍曾元 邱德敏 朱洪艳[1] 祝敬乐 屈顺利 王元亨 HUO Zengyuan;QIU Demin;ZHU Hongyan;ZHU Jingle;QU Shunli;WANG Yuanheng(School of Electronics and Information,Xi'an Jiaotong University,Xi'an 710049,China;State Key Laboratory of Astronautic Dynamics,Xi'an 710043,China)

机构地区：[1]西安交通大学电子与信息学部,陕西西安710049 [2]宇航动力学国家重点实验室,陕西西安710043

出　　处：《无线电工程》2025年第3期603-610,共8页Radio Engineering

摘　　要：测控天线跟踪航天器之前需要对预定空域进行搜索扫描。为解决现有扫描策略设计简单、扫描效率低、存在空点盲区等问题,提出一种改进的螺旋扫描策略,采用以跟踪目标航天器预置等待点为中心的螺旋线粗精组合扫描方式,控制天线波束在扩张扫描阶段快速进行大范围粗扫,在收缩扫描阶段进行小范围精扫,实现对目标预定搜索空域大面积快速高效扫描。经仿真验证,改进后的扫描策略覆盖的扫描区域更大,能在短时间内大幅提高空间目标搜索捕获的成功率,使用该策略扫描的天线速度变化平稳,有利于对天线机械结构的保护。Before tracking space targets by TT&C antennas,scanning of the predetermined airspace is required.To solve the problems of simple design,low scanning efficiency,and blind spots in current antenna scanning strategies,an improved spiral scanning strategy is proposed,which employs a combination of coarse and fine scanning with a spiral line centered on the pre-set waiting point of the target spacecraft.The antenna beam is controlled to sweep rapidly and coarsely over a large area in the expanding scanning stage,and to sweep finely over a small area in the contracting scanning stage,so as to realize fast and efficient scanning over a large area of the target's predefined searching airspace.Simulation results demonstrate that by using the improved scanning strategy,a larger scanning area is covered,the success rate of searching and capturing spatial targets is significantly increased in a short period,and smooth changes of antenna velocity can be realized,which is beneficial for protecting the mechanical structure of the antenna.

关 键 词：扫描策略 螺旋扫描 扩张收缩 扫描效率 速度阶跃 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]