| 析构时间相关模型的面对称飞行器机动估计 |
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| 引用本文： | 卢晓东,辛佳宁,顾嘉耀,王俊康,程承.析构时间相关模型的面对称飞行器机动估计[J].宇航学报,2021,42(2):167-174. |
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| 作者姓名： | 卢晓东 辛佳宁 顾嘉耀 王俊康 程承 |
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| 作者单位： | 西北工业大学航天学院，西安 710072 |
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| 基金项目： | 国家自然科学基金（61973254）;航空科学基金（20185853040）；“十三五”装备预研兵器工业联合基金（6141B0128112）；西北工业大学硕士研究生创意创新种子基金(CX2020049) |
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| 摘 要： | 针对现代战机大机动规避时机动加速度估计困难的问题，提出一种基于动力学析构时间相关运动模型(DTDM)的面对称飞行器目标机动估计算法。首先考虑面对称飞行器的大机动过载主要由主升力面升力产生，将飞行器动力学方程析构简化为主升力面过载和主升力面滚转角耦合的时间相关模型。然后，基于分段定常系统(PWCS)可观测性理论和奇异值分解(SVD)法对模型的可观测性进行分析，结果表明其可观性优于改进“当前”统计模型(MCSM)和Jerk模型。最后使用容积卡尔曼滤波(CKF)算法对战机大机动规避的典型场景进行数学仿真，仿真结果表明本文所提模型对面对称飞行器目标的大机动过载估计精度优于MCSM和Jerk模型。
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| 收稿时间： | 2019-12-10 |
Maneuvering Estimation for Planesymmetric
Aircraft Based onDestructive Timedependent Model |
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| LU Xiao dong,XIN Jia ning,GU Jia yao,WANG Jun kang,CHENG Cheng.Maneuvering Estimation for Planesymmetric
Aircraft Based onDestructive Timedependent Model[J].Journal of Astronautics,2021,42(2):167-174. |
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| Authors: | LU Xiao dong XIN Jia ning GU Jia yao WANG Jun kang CHENG Cheng |
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| Affiliation: | School of Astronautics, Northwestern Polytechnical
University, Xi’an 710072, China |
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| Abstract: | To solve the difficulty of estimating maneuvering
acceleration during large maneuvering of a plane symmetric
aircraft, a target maneuvering estimation algorithm based on dynamic
destructive time dependent motion model (DTDM) is
proposed in this paper. Firstly, the dynamic model of the plane symmetric aircraft is decomposed and simplified. Considering that
the maneuvering acceleration of the plane symmetric
aircraft is mainly generated by the main lift from wing surface, the dynamic
equation is simplified to a time dependent model of the
magnitude and direction of the main lift. Then, the observability of the
proposed model is analyzed according to the observability theory of piece wise constant systems(PWCS) and singular value decomposition (SVD),
and it is validated that the observability of the model is better than that of
the modified “current” statistical (MCSM) motion model and Jerk model. Finally, the mathematical
simulations using the Cubature Kalman filter (CKF) algorithm are performed on
the typical scenario of modern fighter escaping with large maneuvering. The
results show that the estimation accuracy of large maneuver of plane symmetric aircraft based on DTDM is better than the accuracy of MCSM
and Jerk. |
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