一种雷达天线高仰角下的目标稳定跟踪方法  

A Stable Target Tracking Method for Radar Antenna at High Elevation Angle

作　　者：孟会杰 MENG Huijie(Taiyuan Satellite Launch Center,Taiyuan 750000,China)

机构地区：[1]太原卫星发射中心,山西太原750000

出　　处：《河南科技》2024年第23期14-18,共5页Henan Science and Technology

摘　　要：【目的】针对天线在高仰角过顶跟踪状态下受正割补偿的影响而产生异常抖动、动态滞后等现象,提出一种测控设备高仰角跟踪测量任务前航迹理论分析方法。【方法】使用正割补偿原理对高仰角状态下目标航迹进行分析,并结合天线跟踪性能预先进行判别,并确定天线在高仰角跟踪测量任务中能保持跟踪状态的段落,为制定发射段天线捕获和跟踪策略提供理论支撑,尽可能多地获得测量数据。【结果】通过对数据进行分析,提前确定天线在高仰角跟踪测量任务中能保持跟踪状态的段落。相较于无数据支撑的预估判断方式,该方法具有更高的参考价值,能准确判断出设备切换跟踪状态的时机,并比以往的判断方式能多获取约8 s的有效数据。【结论】该方法为天线在高仰角过顶跟踪状态下目标的捕获和跟踪策略提供理论支撑。[Purposes]Aiming at the phenomenon of abnormal jitter and dynamic lag of the antenna caused by the existence of secant compensation in the state of high elevation overhead tracking,a theoretical analysis method of the track before the high elevation tracking measurement task of the measurement and control equipment is proposed.[Methods]The secant compensation principle is used to analyze the target track in the high elevation state.Combined with the antenna tracking performance,the pre-judgment is carried out to determine the section where the antenna can maintain the tracking state in the high elevation tracking measurement task,which provides theoretical support for the formulation of the antenna acquisition and tracking strategy in the transmitting section,and obtains the measurement data as much as possible.[Findings]Through the analysis of the data in this paper,the paragraphs in which the antenna can maintain the tracking state in the high elevation angle tracking measurement task are determined in advance,which is more meaningful than the previous prediction judgment method without data support.Taking the data in this paper as an example,the timing of equipment switching tracking state can be accurately judged,and about 8 seconds of effective data are obtained compared with the previous judgment method.[Conclusions]This method can provide theoretical support for the target acquisition and tracking strategy of the antenna in the high elevation over-the-top tracking state.

关 键 词：正割补偿 动态滞后 注意事项 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]