| 引用本文: | 刘占强,梁路江,胡祺勇,王春阳.基于雷达探测概率的飞机隐身性能评估[J].哈尔滨工业大学学报,2017,49(11):158.DOI:10.11918/j.issn.0367-6234.201705064 |
| LIU Zhanqiang,LIANG Lujiang,HU Qiyong,WANG Chunyang.Evaluation onaircraft stealth performance based on radar detection probability[J].Journal of Harbin Institute of Technology,2017,49(11):158.DOI:10.11918/j.issn.0367-6234.201705064 |
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| 摘要: |
| 针对利用不同极化方式的雷达散射截面数据难以准确衡量飞机各个角域的隐身性能问题，提出了一种基于移动平滑算法和探测概率模型相结合的评估方法.首先设置平滑窗口对HH极化和VV极化的周向RCS数据进行了平滑处理减小了RCS极化相对误差.然后基于单脉冲检测和非相参积累检测求取了平滑数据的雷达探测概率及其探测概率误差，结合两种误差条件，并按照最佳移动平滑处理使RCS极化相对误差最小而不使原始数据信息失真，最优非相参积累检测效果尽可能反映各个角域探测概率误差信息的原则，定义了以滑动窗口尺寸和非相参积累脉冲构成的最优组合解.最后采用遍历比较法求解了隐身飞机RCS数据移动平滑及其探测概率的最优处理结果，进而对飞机重点角域的隐身特性进行了量化分析和有效评估.仿真结果表明：经过平滑处理的RCS数据，在求取非相参积累探测概率后，能够有效评估飞机重点角域的可探测性能，且组合解为(10, 10)时，评估效果最佳.
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| 关键词: 雷达散射截面 隐身性能 移动平滑算法 探测概率 单脉冲检测 非相参积累检测 |
| DOI：10.11918/j.issn.0367-6234.201705064 |
| 分类号:V218 |
| 文献标识码:A |
| 基金项目:国家自然科学基金(61601499) |
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| Evaluation onaircraft stealth performance based on radar detection probability |
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LIU Zhanqiang,LIANG Lujiang,HU Qiyong,WANG Chunyang
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(Air and Missile Defense College, Air Force Engineering University, Xi’an 710051, China)
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| Abstract: |
| According to the data of radar cross section (RCS) under different polarization modes difficult to accurately measure aircraft stealth performance in each angle domain, an evaluation method based on the moving-polynomial smoother algorithm and detection probability model is proposed. Firstly, the circumferential RCS data of HH polarization and VV polarization is treated smoothly to decline relative error of RCS polarization by setting smooth window. Then, radar detection probability and detection probability error of smooth data are calculated based on the single-hit detection and the incoherent integration detection. Combined with two kinds of error conditions and according to the principle that the best moving-polynomial smoother is that relative error of RCS polarization is a minimum with the undistorted raw data information, and the optimal incoherent integration detection effect is that the error information of detection probability in each angle domain is reflected as much as possible. The optimal combination solution is made up of the smooth window and incoherent integration pulse is defined. Finally, the optimal simulation results of the smooth RCS data and detection probability are obtained by using traverse comparison, and then aircraft stealth performance is analyzed quantitatively and evaluated effectively in each angle domain. Simulation results show that incoherent integration detection probability of the smooth RCS data could evaluate aircraft stealth performance in key angle domain, and the assessment effect is the best when the combination solution is (10, 10).
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| Key words: radar cross section stealth performance moving-polynomial smoother algorithm detection probability single-hit detection incoherent integration detection |
