现代防御技术 ›› 2026, Vol. 54 ›› Issue (2): 100-109.DOI: 10.3969/j.issn.1009-086x.2026.02.009

• 论文 • 上一篇    

飞行器运动状态对雷达检测概率的影响分析

李坤坤1, 罗海清2, 刘子敬1, 刘天翔1   

  1. 1.中国人民解放军63660部队
    2.北京无线电测量研究所,北京 100854
  • 收稿日期:2025-03-24 修回日期:2025-06-10 出版日期:2026-04-28 发布日期:2026-04-30
  • 作者简介:李坤坤(1994-),男,陕西咸阳人。工程师,硕士,研究方向为雷达目标跟踪、测试测量技术与应用。

Analysis of the Impact of Aircraft Kinematic State on Radar Detection Probability

Kunkun LI1, Haiqing LUO2, Zijing LIU1, Tianxiang LIU1   

  1. 1.PLA 63660 Troops
    2.Beijing Institute of Radio Measurement,Beijing 100854,China
  • Received:2025-03-24 Revised:2025-06-10 Online:2026-04-28 Published:2026-04-30

摘要:

飞行器航测时保持要地防御雷达对其低检测概率是其航线规划的基本要求,这需要考虑和评估飞行器自身运动状态不确定性引起的雷达检测概率变化,对此提出一种基于无迹变换(unscented transformation, UT)的飞行器运动状态不确定性影响检测概率的分析方法。给出飞行器被雷达检测的相关模型;引入UT方法建立了飞行器位置、姿态等运动状态不确定性传播影响检测概率的分析流程;设计一个航测飞行器被单脉冲防御雷达探测的仿真实验场景,通过Monte Carlo方法检验了UT方法具有较高的分析准确性,并分析了飞行器运动状态不同程度不确定性影响检测概率的规律,此外与传统线性协方差分析方法比较说明了UT方法具有简捷高效的计算效率。

关键词: 飞行器, 航线规划, 运动状态不确定性, 检测概率, 无迹变换

Abstract:

Maintaining a low detection probability by defense radars in vital areas is a fundamental requirement for aircraft route planning during aerial surveys. This necessitates considering and assessing the variations in radar detection probability caused by the kinematic state uncertainty of the aircraft itself. To this end, analysis method based on unscented transformation (UT) is proposed to evaluate the impact of aircraft kinematic state uncertainty on detection probability. Relevant models regarding aircraft detection by radar are presented. The UT method is introduced to establish an process for the propagation of aircraft kinematic state (involving position, and attitude) uncertainty and their impact on radar detection probability. A simulation experiment scenario is designed wherein an aerial survey aircraft is detected by a single-pulse defense radar. The Monte Carlo method is employed to verify the high analysis accuracy of the UT method. Additionally, the patterns regarding how varying degrees of aircraft kinematic state uncertainty affect detection probability are analyzed. Furthermore, comparisons with the traditional linear covariance analysis method demonstrate that the UT method possesses both simplicity and high computational efficiency.

Key words: aircraft, route planning, kinematic state uncertainty, detection probability, unscented transformation(UT)

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