面向预警监视任务的天基雷达研究进展

doi:10.12305/j.issn.1001-506X.2025.10.08

Abstract

Abstract:

With the rapid advancement of space technology, space-based radar （SBR） system becomes a important technology for global surveillance and strategic early warning. However, SBR system still face many technical challenges in the early warning and surveillance （EWS） task of space targets in the space environment. In recent years, extensive research has been conducted on the system design and key technologies of space-based radar, resulting in numerous research achievements in areas such as large-scale deployable antenna technology, detection and tracking technology in space environments, data processing and information transmission links, and space-based sensor scheduling. This paper introduces the development trajectory of key SBR technologies, from the earliest missile early warning satellites to the current multifunctional integrated surveillance systems, and systematically reviews the main research content and progress in tasks oriented towards detection, tracking, inverse synthetic aperture radar （ISAR） imaging, radar networking and resource allocation, providing a vertical and horizontal comparative perspective for the study of key technologies of SBR for space EWS tasks. On the basis of current research, the advantages and challenges of SBR system is further analyzed, and potential research directions and future development trends in the EWS tasks of space-based radar are proposed.

Key words: space-based radar (SBR), space target surveillance, early warning and surveillance (EWS) task, radar mission requirement

CLC Number:

TN 957

Shuyu ZHENG, Qingwei YANG, Libing JIANG, Zhuang WANG. Research progress on space-based radar for early warning and surveillance task[J]. Systems Engineering and Electronics, 2025, 47(10): 3199-3217.

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任务类型	任务内涵和要求
预警探测	在广阔空间范围内对潜在目标进行搜寻、侦测与追踪。在此任务中，雷达需具备广阔的搜索视野和较长的作用距离。尽管如此，对于目标精确定位和运动参数的测定，其精度要求并不会过于严苛。换言之，预警探测更侧重于雷达搜索覆盖范围和远程探测能力，而非对测量精度的极端追求。
精密测量	对雷达系统的精度要求较高，需要其能够精确捕捉并记录目标的运动路径和具体坐标。这类应用常见于武器试验靶场的性能评估，或是为空间目标提供精细的轨道数据。由于测量任务的特定性，雷达搜索区域通常是预设的，具有明确界限，因此相较于广域搜索，其覆盖范围较为有限。
武器制导	在此任务中，雷达扮演着向武器系统输送目标定位信息的角色，确保武器能够精确地锁定并攻击预定目标。首要目标是确保所提供的目标位置和运动参数达到武器系统所需的攻击精度。至于雷达作用距离，则需与武器的有效射程相匹配，以覆盖必要的攻击范围。简而言之，雷达在武器制导中的作用是提供精确的目标参数，而其探测距离应与武器的攻击范围相适应。
目标识别	涉及对已被雷达系统追踪的目标进行深入分析，以识别其独有的特性或行为模式，其中包括对目标内部运动特征的细致刻画，或是在特定区域内对目标进行区分。在此类任务中，分辨力是衡量雷达性能的关键标准。简而言之，目标识别的关键在于雷达区分目标特征的能力，其核心指标是分辨力。

多目标跟踪类型	跟踪方法	跟踪精度	运算量
数据关联类	GNN	低	低
	JPDA	中等	中等
	JIPDA	中等	中等
	MHT	高	高
RFS类	PHD	低	低
	CPHD	中等	中等
	TCPHD	中等	低
	MeMBer	中等	中等
	PMBM	高	中等
	GLMB	高	高
	LMB	高	中等

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Research progress on space-based radar for early warning and surveillance task

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