| 引用本文: | 付昭旺,于雷,李战武,等.战斗机隐蔽接敌轨迹优化方法.[J].国防科技大学学报,2013,35(5):52-58.[点击复制] |
| FU Zhaowang,YU Lei,LI Zhanwu,et al.The trajectory optimization method for fighter stealthy approach[J].Journal of National University of Defense Technology,2013,35(5):52-58[点击复制] |
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| 战斗机隐蔽接敌轨迹优化方法 |
| 付昭旺, 于雷, 李战武, 李飞 |
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(空军工程大学 航空航天工程学院 陕西 西安 710038)
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| 摘要: |
| 针对空战对抗的隐蔽作战需求，对战斗机隐蔽接敌方法进行研究。基于战斗机雷达反射截面积的动态特性建立雷达探测威胁模型，以空战态势参数为状态建立接敌引导模型，以给定目标发现概率为暴露阈值进行威胁约束，以最小化接敌过程中累积被发现概率为性能指标，将战斗机隐蔽接敌问题建立为隐蔽性约束下的最优控制问题模型。为保证算法的实时性和有效性，引入滚动时域控制策略进行在线优化，并采用高斯伪谱法进行数值求解。仿真实验表明，通过路径约束和性能指标双重约束，能有效增强战斗机接敌的隐蔽性，算法实时性能满足战斗机控制的需求。 |
| 关键词: 隐蔽接敌 轨迹优化 探测威胁 高斯伪谱法 滚动时域控制 |
| DOI： |
| 投稿日期：2013-03-04 |
| 基金项目:国家自然科学基金资助项目（61172083）;航空科学基金资助项目(20095196012) |
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| The trajectory optimization method for fighter stealthy approach |
| FU Zhaowang, YU Lei, LI Zhanwu, LI Fei |
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(Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an 710038, China)
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| Abstract: |
| Stealthy approach method of fighter was researched for the requirement of concealment counterwork in air combat. Detection threat model for radar was constructed based on dynamic trait for Radar Cross Section (RCS). Guidance model was constructed based on parameters for situation description in air combat. An optimal control was formulated for stealthy approach problem of fighter, in which performance index is built by minimizing detection probability and threat restriction is given by critical exposed distance under given detection probability. Receding Horizon Control (RHC) was introduced for online optimization and Gauss Pseudo-spectral Method (GPM) was adopted for numerical solution to assure the real-time resolution requirement. Simulation result shows that stealthy approach ability is greatly enhanced for fighter by adopting both path restriction and performance index restriction, and the model resolution time can satisfy the real-time requirement for fighter control. |
| Keywords: stealthy approach trajectory optimization detection threat Gauss Pseudo-spectral Method(GPM) Receding Horizon Control（RHC) |
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