瞄准误差下间歇机动制导律的能观性增强分析  

Observability enhancement analysis of intermittent maneuver guidance law with aiming error

作　　者：张鹏[1] 陆科林 张宁[2] Zhang Peng;Lu Kelin;Zhang Ning(School of Automation,Southeast University,Nanjing 210096,China;Beijing Electro-mechanical Engineering Institute,Beijing 100074,China)

机构地区：[1]东南大学自动化学院,南京210096 [2]北京机电工程研究所,北京100074

出　　处：《战术导弹技术》2024年第2期135-146,共12页Tactical Missile Technology

基　　金：国家自然科学基金(62373101,62073075)。

摘　　要：针对瞄准误差下采用比例导引的制导系统能观性弱,而制导信息估计精度低的问题,提出了一种能观性增强的间歇机动制导方法,并通过构造高斯过程模型实现了制导方法的参数优化。基于李导数构造了系统能观性的量化分析指标,使用该指标评估能观性增强方法的有效性,进而利用回归分析方法重构了制导律参数与能观性指标之间的映射关系,确定了可稳定保证制导系统能观性的阈值相关参数。数值仿真结果表明,所提制导方法有效提高了滤波器的估计精度,同时降低了制导系统的脱靶量。Aiming at the problem that the guidance system with proportional guidance under aiming error has weak observability and low estimation accuracy of guidance information,a method of intermittent maneuver guidance with enhanced observability is proposed,and the parameters of guidance method are optimized by constructing Gaussian Process model.A quantitative analysis index of system observability is constructed based on the Lie derivative,and then the effectiveness of the observability enhancement method is evaluated by using this index.The mapping relationship between guidance law parameters and observability indexes is reconstructed by using regression analysis method,and the threshold parameters which can stably guarantee the observability of the guidance system are determined.Numerical simulation results show that the proposed guidance method can effectively improve the estimation accuracy of the filter and reduce the miss distance of the guidance system.

关 键 词：瞄准误差 能观性分析 能观性增强 间歇机动制导 高斯过程回归 脱靶量 蒙特卡洛仿真 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程]