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基于AD9361的雷达射频和差模拟器
2021年电子技术应用第12期
李伟宗1,马晓冬2,任 洁1,刘建明1
1.太原卫星发射中心,山西 太原030012;2.华北计算机系统工程研究所,北京100083
摘要:脉冲雷达是我国骨干测控设备,由于波束窄,在测控任务中捕获、跟踪一直是其难点。多年来测控技术人员一直对模拟实战训练进行不间断的研究、探索,传统的射频模拟器均采用上变频模式实现,设备庞大,价格昂贵。通过介绍测控设备的基本组成与和差信号在脉冲雷达中的形成过程,基于实战雷达系统,采用软件模块实现了上位机系统控制硬件和与雷达设备的信息传输,采用AD9361射频芯片实现了C波段雷达模拟信号的产生,通过在雷达设备上的测试验证,采用软件无线电技术实现C频段射频信号的产生,解决了设备人员实战化训练手段不足的问题,进一步提升设备人员捕获跟踪及应急处置能力,是全面检验设备技、战术性能的重要手段。
中图分类号:TN953
文献标识码:A
DOI:10.16157/j.issn.0258-7998.211631
中文引用格式:李伟宗,马晓冬,任洁,等. 基于AD9361的雷达射频和差模拟器[J].电子技术应用,2021,47(12):135-140.
英文引用格式:Li Weizong,Ma Xiaodong,Ren Jie,et al. The simulator of RF sum-difference signal based on AD9361 for pulse radar[J]. Application of Electronic Technique,2021,47(12):135-140.
The simulator of RF sum-difference signal based on AD9361 for pulse radar
Li Weizong1,Ma Xiaodong2,Ren Jie1,Liu Jianming1
1.Taiyuan Satellite Launch Center,Taiyuan 030012,China; 2.National Computer System Engineering Research Institute of China,Beijing 100083,China
Abstract:Pulse radar is the backbone measurement and control equipment in our country. Because of its narrow beam, it is always difficult to capture and track in the measurement and control task. For many years, measurement and control technicians have been studying and exploring the simulation actual combat training in different ways. The traditional RF simulator is realized by the up-conversion mode, which has huge equipment and high price. This paper introduces the basic composition of measurement and control equipment and the formation process of sum and difference signal in pulse radar. Based on the practical radar system, the software module is used to realize the control hardware of the upper computer system and the information transmission with the radar equipment. C-band radar analog signal is generated by AD9361 RF chip. Through the test and verification on the radar equipment, the software radio technology is successfully realized to generate the C-band RF signal, which solves the problem of insufficient actual combat training means for equipment personnel, further improve equipment personnel tracking capture and emergency disposal ability, is an important means to test the technical and tactical performance of the equipment.
Key words :pulse radar;sum-difference signal;simulator;AD9361

0 引言

随着我国航天事业的发展,近年来我国先后装备了一批用于航天工程任务的测控设备[1]。这些设备由中心机远程统一管理和调度,实现设备的组网和自动化运行。在测控任务中,目标航迹追踪的准确、及时与否,直接关系到任务的效果。因此,在日常作战演练中,针对目标航迹如何进行模拟、仿真也得到了高度的重视。对应的,一些具有代表性的方法也不断地提出。仿真的有效性一方面取决于对目标特性的刻画,另一方面取决对设备特性的分析。目标特性取决于对应的应用场景,文献[2]~[5]都是以飞机为基础参考物,提取其参考的空中目标对应的若干种特征进行的系统仿真。航迹跟踪设备包括对应的预警设备、测控设备等。在测控系统中,由于发射信号的波束较窄,其大范围搜索截获能力受到一定限制,单纯依靠手动搜索发现目标较为困难。为了保证雷达能及时抓到目标并尽早稳定跟踪,在设计和使用时通常考虑采用数据引导以提高搜索截获效率[6-9]。随着设备的使用,引导的精度需要实时校准。




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作者信息:

李伟宗1,马晓冬2,任 洁1,刘建明1

(1.太原卫星发射中心,山西 太原030012;2.华北计算机系统工程研究所,北京100083)




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